{"id":"GHSA-gwq6-fmvp-qp68","revision":null,"records":[{"revision":"83b7e6783ac040ba9ae5b7c9109aa754","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-55248","aliases":[],"title":".NET, .NET Framework, and Visual Studio Information Disclosure Vulnerability","description":"Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.","state":0,"publishedAt":"2025-10-14T17:00:59.059+00:00","modifiedAt":"2026-02-22T17:25:10.409+00:00","affected":[{"ecosystem":"Vendor product","name":".NET 8.0","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 8.0\",\n                    \"versions\": [\n                        {\n                            \"version\": \"8.0.0\",\n                            \"lessThan\": \"8.0.21\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":".NET 9.0","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 9.0\",\n                    \"versions\": [\n                        {\n                            \"version\": \"9.0.0\",\n                            \"lessThan\": \"9.0.10\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 2.0 Service Pack 2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 2.0 Service Pack 2\",\n                    \"platforms\": [\n                        \"Windows Server 2008 for 32-bit Systems Service Pack 2\",\n                        \"Windows Server 2008 for x64-based Systems Service Pack 2\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.0.0\",\n                            \"lessThan\": \"2.0.50727.8981\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.0 Service Pack 2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.0 Service Pack 2\",\n                    \"platforms\": [\n                        \"Windows Server 2008 for 32-bit Systems Service Pack 2\",\n                        \"Windows Server 2008 for x64-based Systems Service Pack 2\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.0.0\",\n                            \"lessThan\": \"2.0.50727.8981\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.5","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.5\",\n                    \"platforms\": [\n                        \"Windows Server 2008 for 32-bit Systems Service Pack 2\",\n                        \"Windows Server 2008 for x64-based Systems Service Pack 2\",\n                        \"Windows Server 2012\",\n                        \"Windows Server 2012 (Server Core installation)\",\n                        \"Windows Server 2012 R2\",\n                        \"Windows Server 2012 R2 (Server Core installation)\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.5.0\",\n                            \"lessThan\": \"2.0.50727.8981\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.5 AND 4.7.2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.5 AND 4.7.2\",\n                    \"platforms\": [\n                        \"Windows 10 Version 1607 for 32-bit Systems\",\n                        \"Windows 10 Version 1607 for x64-based Systems\",\n                        \"Windows 10 Version 1809 for 32-bit Systems\",\n                        \"Windows 10 Version 1809 for x64-based Systems\",\n                        \"Windows Server 2016\",\n                        \"Windows Server 2016 (Server Core installation)\",\n                        \"Windows Server 2019\",\n                        \"Windows Server 2019 (Server Core installation)\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.7.0\",\n                            \"lessThan\": \"4.7.04137.03\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.5 AND 4.8","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.5 AND 4.8\",\n                    \"platforms\": [\n                        \"Windows 10 Version 1809 for 32-bit Systems\",\n                        \"Windows 10 Version 1809 for x64-based Systems\",\n                        \"Windows 10 Version 21H2 for 32-bit Systems\",\n                        \"Windows 10 Version 21H2 for ARM64-based Systems\",\n                        \"Windows 10 Version 21H2 for x64-based Systems\",\n                        \"Windows 10 Version 22H2 for 32-bit Systems\",\n                        \"Windows 10 Version 22H2 for ARM64-based Systems\",\n                        \"Windows 10 Version 22H2 for x64-based Systems\",\n                        \"Windows Server 2019\",\n                        \"Windows Server 2019 (Server Core installation)\",\n                        \"Windows Server 2022\",\n                        \"Windows Server 2022 (Server Core installation)\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.8.0\",\n                            \"lessThan\": \"4.8.04798.02\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.5 AND 4.8.1","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.5 AND 4.8.1\",\n                    \"platforms\": [\n                        \"Windows 10 Version 21H2 for 32-bit Systems\",\n                        \"Windows 10 Version 21H2 for ARM64-based Systems\",\n                        \"Windows 10 Version 21H2 for x64-based Systems\",\n                        \"Windows 10 Version 22H2 for 32-bit Systems\",\n                        \"Windows 10 Version 22H2 for ARM64-based Systems\",\n                        \"Windows 10 Version 22H2 for x64-based Systems\",\n                        \"Windows 11 Version 22H2 for ARM64-based Systems\",\n                        \"Windows 11 Version 22H2 for x64-based Systems\",\n                        \"Windows 11 Version 23H2 for ARM64-based Systems\",\n                        \"Windows 11 Version 23H2 for x64-based Systems\",\n                        \"Windows 11 Version 24H2 for ARM64-based Systems\",\n                        \"Windows 11 Version 24H2 for x64-based Systems\",\n                        \"Windows 11 Version 25H2 for ARM64-based Systems\",\n                        \"Windows 11 Version 25H2 for x64-based Systems\",\n                        \"Windows Server 2022\",\n                        \"Windows Server 2022 (Server Core installation)\",\n                        \"Windows Server 2022, 23H2 Edition (Server Core installation)\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.8.1\",\n                            \"lessThan\": \"4.8.1.09320.02\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 3.5.1","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 3.5.1\",\n                    \"platforms\": [\n                        \"Windows Server 2008 R2 for x64-based Systems Service Pack 1\",\n                        \"Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.5.0\",\n                            \"lessThan\": \"2.0.50727.8981\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 4.6.2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 4.6.2\",\n                    \"platforms\": [\n                        \"Windows Server 2008 for 32-bit Systems Service Pack 2\",\n                        \"Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)\",\n                        \"Windows Server 2008 for x64-based Systems Service Pack 2\",\n                        \"Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.7.0\",\n                            \"lessThan\": \"4.7.04137.03\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2\",\n                    \"platforms\": [\n                        \"Windows Server 2008 R2 for x64-based Systems Service Pack 1\",\n                        \"Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)\",\n                        \"Windows Server 2012\",\n                        \"Windows Server 2012 (Server Core installation)\",\n                        \"Windows Server 2012 R2\",\n                        \"Windows Server 2012 R2 (Server Core installation)\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.7.0\",\n                            \"lessThan\": \"4.7.04137.03\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft .NET Framework 4.8","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft .NET Framework 4.8\",\n                    \"platforms\": [\n                        \"Windows 10 Version 1607 for 32-bit Systems\",\n                        \"Windows 10 Version 1607 for x64-based Systems\",\n                        \"Windows Server 2008 R2 for x64-based Systems Service Pack 1\",\n                        \"Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)\",\n                        \"Windows Server 2012\",\n                        \"Windows Server 2012 (Server Core installation)\",\n                        \"Windows Server 2012 R2\",\n                        \"Windows Server 2012 R2 (Server Core installation)\",\n                        \"Windows Server 2016\",\n                        \"Windows Server 2016 (Server Core installation)\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.8.0\",\n                            \"lessThan\": \"4.8.04798.02\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Visual Studio 2022 version 17.10","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Visual Studio 2022 version 17.10\",\n                    \"versions\": [\n                        {\n                            \"version\": \"17.10.0\",\n                            \"lessThan\": \"17.10.20\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Visual Studio 2022 version 17.12","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Visual Studio 2022 version 17.12\",\n                    \"versions\": [\n                        {\n                            \"version\": \"17.12.0\",\n                            \"lessThan\": \"17.12.13\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Visual Studio 2022 version 17.14","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Visual Studio 2022 version 17.14\",\n                    \"versions\": [\n                        {\n                            \"version\": \"17.14.0\",\n                            \"lessThan\": \"17.14.17\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","score":4.8,"severity":"MEDIUM"}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55248"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-55248","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-55248","identifiers":["CVE-2025-55248"]},"retained":false,"historicalAffected":[]},{"revision":"75c3fd2df0754ecb8ff5dc396a85cdb6","observedAt":"2026-11-15T08:31:44.431+00:00","statement":{"source":"euvd","id":"EUVD-2025-34346","aliases":["CVE-2025-55248","GHSA-987x-96fq-9384","GHSA-gwq6-fmvp-qp68"],"title":"Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.","description":"Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","score":4.8,"severity":null}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55248"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-34346","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 14, 2025, 5:00:59 PM","dateUpdated":"Feb 22, 2026, 5:25:10 PM"},"relatedAdvisories":[{"id":"RHSA-2025:18256","title":"Red Hat Security Advisory: .NET 8.0 security update","vulnerabilityIds":["CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"]},{"id":"RHSA-2025:23225","title":"Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.25.0 Release.","vulnerabilityIds":["CVE-2024-4067","CVE-2025-55247","CVE-2025-55248","CVE-2025-55315","CVE-2025-55752","CVE-2025-61927","CVE-2025-66516"]},{"id":"WID-SEC-W-2025-2278","title":"Microsoft Developer Tools: Mehrere Schwachstellen","vulnerabilityIds":["CVE-2025-25004","CVE-2025-54132","CVE-2025-55240","CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"]},{"id":"RHSA-2025:18150","title":"Red Hat Security Advisory: .NET 9.0 security update","vulnerabilityIds":["CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"]},{"id":"RHSA-2025:18153","title":"Red Hat Security Advisory: .NET 9.0 security update","vulnerabilityIds":["CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"]},{"id":"msrc_CVE-2025-55248","title":".NET, .NET Framework, and Visual Studio Information Disclosure Vulnerability","vulnerabilityIds":["CVE-2025-55248"]},{"id":"NCSC-2025-0313","title":"Kwetsbaarheden verholpen in Microsoft Developer Tools","vulnerabilityIds":["CVE-2025-25004","CVE-2025-54132","CVE-2025-55240","CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"]},{"id":"RHSA-2025:18152","title":"Red Hat Security Advisory: .NET 8.0 security update","vulnerabilityIds":["CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"]},{"id":"RHSA-2026:9080","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","vulnerabilityIds":["CVE-2025-26646","CVE-2025-55247","CVE-2025-55248","CVE-2025-55315","CVE-2026-26171","CVE-2026-32178","CVE-2026-32203","CVE-2026-33116"]},{"id":"RHSA-2025:18151","title":"Red Hat Security Advisory: .NET 9.0 security update","vulnerabilityIds":["CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"]},{"id":"RHSA-2025:18149","title":"Red Hat Security Advisory: .NET 8.0 security update","vulnerabilityIds":["CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"]},{"id":"RHSA-2026:9205","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","vulnerabilityIds":["CVE-2025-26646","CVE-2025-55247","CVE-2025-55248","CVE-2025-55315","CVE-2026-26171","CVE-2026-32178","CVE-2026-32203","CVE-2026-33116"]},{"id":"RHSA-2025:18148","title":"Red Hat Security Advisory: .NET 8.0 security update","vulnerabilityIds":["CVE-2025-55247","CVE-2025-55248","CVE-2025-55315"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2025-34346","identifiers":["EUVD-2025-34346","CVE-2025-55248","GHSA-987x-96fq-9384","GHSA-gwq6-fmvp-qp68"]},"retained":false,"historicalAffected":[]},{"revision":"e71bfc44166442b893108caade4852e0","observedAt":"2026-10-25T03:17:11.863+00:00","statement":{"source":"nvd","id":"CVE-2025-55248","aliases":[],"title":"Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.","description":"Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.","state":0,"publishedAt":"2025-10-14T17:15:44.787+00:00","modifiedAt":"2026-06-17T09:41:31.68+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · secure@microsoft.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N","score":4.8,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N","score":5.7,"severity":"MEDIUM"}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55248"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-55248","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-326"],"productCriteria":["cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*","cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*","cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*","cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*","cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*","cpe:2.3:a:microsoft:.net_framework:3.5:-:*:*:*:*:*:*","cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*","cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:*","cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*","cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*","cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*","cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2025-10-14T17:15:44.787","lastModified":"2026-06-17T09:41:31.680"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2025-55248","identifiers":["CVE-2025-55248"]},"retained":false,"historicalAffected":[]},{"revision":"4064a5264fda4b4f93647b0e9d11746a","observedAt":"2026-10-23T16:01:25.029+00:00","statement":{"source":"osv","id":"GHSA-987x-96fq-9384","aliases":[],"title":"Duplicate Advisory: Microsoft Security Advisory CVE-2025-55248: .NET Information Disclosure Vulnerability","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-gwq6-fmvp-qp68. This link is maintained to preserve external references.\n\n### Original Description\nInadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.","state":2,"publishedAt":"2025-10-14T18:30:30+00:00","modifiedAt":"2025-10-16T08:08:41.372806+00:00","affected":[{"ecosystem":"NuGet","name":"Microsoft.NetCore.App.Runtime.linux-arm","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"9.0.0"},{"kind":"fixed","version":"9.0.10"}]}],"versions":["9.0.0","9.0.1","9.0.2","9.0.3","9.0.4","9.0.5","9.0.6","9.0.7","9.0.8","9.0.9"],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2025-55248","https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55248"],"sourceUrl":"https://github.com/advisories/GHSA-987x-96fq-9384","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-987x-96fq-9384","identifiers":["GHSA-987x-96fq-9384"]},"retained":false,"historicalAffected":[]},{"revision":"3d64499e2efb43258d82732b680a394e","observedAt":"2026-10-23T16:01:25.029+00:00","statement":{"source":"osv","id":"GHSA-gwq6-fmvp-qp68","aliases":["BIT-dotnet-2025-55248","BIT-dotnet-sdk-2025-55248","CVE-2025-55248"],"title":"Microsoft Security Advisory CVE-2025-55248: .NET Information Disclosure Vulnerability","description":"# Microsoft Security Advisory CVE-2025-55248 | .NET Information Disclosure Vulnerability\n\n## <a name=\"executive-summary\"></a>Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in .NET 8.0 and .NET 9.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nA MITM (man in the middle) attacker may prevent use of TLS between client and SMTP server, forcing client to send data over unencrypted connection.\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/372\n\n## <a name=\"mitigation-factors\"></a>Mitigation factors\n\nMicrosoft has not identified any mitigating factors for this vulnerability.\n\n## <a name=\"affected-software\"></a>Affected software\n\n* Any .NET 8.0 application running on .NET 8.0.20 or earlier.\n* Any .NET 9.0 application running on .NET 9.0.9 or earlier.\n\n## <a name=\"affected-packages\"></a>Affected Packages\nThe vulnerability affects any Microsoft .NET project if it uses any of affected packages versions listed below\n\n### <a name=\".NET 9\"></a>.NET 9\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.NetCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm)               | >= 9.0.0, < =9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm64)           | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm)     | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm64) | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-x64)     | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-x64)               | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-arm64)               | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-x64)                   | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm)                   | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm64)               | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x64)                   | >= 9.0.0, <= 9.0.9 | 9.0.10\n[Microsoft.NetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x86)                   | >= 9.0.0, <= 9.0.9 | 9.0.10\n\n### <a name=\".NET 8\"></a>.NET 8\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.NetCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm)               | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-arm64)           | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm)     | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-arm64) | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-musl-x64)     | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.linux-x64)               | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-arm64)               | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.osx-x64)                   | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm)                   | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-arm64)               | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x64)                   | >= 8.0.0, <= 8.0.20 | 8.0.21\n[Microsoft.NetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.NetCore.App.Runtime.win-x86)                   | >= 8.0.0, <= 8.0.20 | 8.0.21\n\n## Advisory FAQ\n\n### <a name=\"how-affected\"></a>How do I know if I am affected?\n\nIf you have a runtime with a version listed, or an affected package listed in [affected software](#affected-packages) or [affected packages](#affected-software), you're exposed to the vulnerability.\n\n### <a name=\"how-fix\"></a>How do I fix the issue?\n\n1. To fix the issue please install the latest version of .NET 9.0 or .NET 8.0, as appropriate. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET  SDKs.\n2. If your application references the vulnerable package, update the package reference to the patched version.\n\n* You can list the versions you have installed by running the `dotnet --info` command. You will see output like the following;\n\n```\n.NET SDK:\n Version:           9.0.100\n Commit:            59db016f11\n Workload version:  9.0.100-manifests.3068a692\n MSBuild version:   17.12.7+5b8665660\n\nRuntime Environment:\n OS Name:     Mac OS X\n OS Version:  15.2\n OS Platform: Darwin\n RID:         osx-arm64\n Base Path:   /usr/local/share/dotnet/sdk/9.0.100/\n\n.NET workloads installed:\nThere are no installed workloads to display.\nConfigured to use loose manifests when installing new manifests.\n\nHost:\n  Version:      9.0.0\n  Architecture: arm64\n  Commit:       9d5a6a9aa4\n\n.NET SDKs installed:\n  9.0.100 [/usr/local/share/dotnet/sdk]\n\n.NET runtimes installed:\n  Microsoft.AspNetCore.App 9.0.0 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]\n  Microsoft.NETCore.App 9.0.0 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]\n\nOther architectures found:\n  x64   [/usr/local/share/dotnet]\n    registered at [/etc/dotnet/install_location_x64]\n\nEnvironment variables:\n  Not set\n\nglobal.json file:\n  Not found\n\nLearn more:\n  https://aka.ms/dotnet/info\n\nDownload .NET:\n  https://aka.ms/dotnet/download\n```\n\n* If you're using .NET 8.0, you should download and install .NET 8.0.21  Runtime or .NET 8.0.318 SDK (for Visual Studio 2022 v17.10 latest update) from https://dotnet.microsoft.com/download/dotnet-core/8.0.\n* If you're using .NET 9.0, you should download and install .NET 9.0.10  Runtime or .NET 9.0.111 SDK (for Visual Studio 2022 v17.12 latest update) from https://dotnet.microsoft.com/download/dotnet-core/9.0.\n\nOnce you have installed the updated runtime or SDK, restart your apps for the update to take effect.\n\nAdditionally, if you've deployed [self-contained applications](https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd) targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\n\n## Other Information\n\n### Reporting Security Issues\n\nIf you have found a potential security issue in .NET 9.0 or .NET 8.0, please email details to secure@microsoft.com. Reports may qualify for the Microsoft .NET Core & .NET 5 Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at <https://aka.ms/corebounty>.\n\n### Support\n\nYou can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.\n\n### Disclaimer\n\nThe information provided in this advisory is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.\n\n### External Links\n\n[CVE-2025-55248]( https://www.cve.org/CVERecord?id=CVE-2025-55248)\n\n### Revisions\n\nV1.0 (October 14, 2025): Advisory 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rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/dotnet/runtime/security/advisories/GHSA-gwq6-fmvp-qp68","https://github.com/dotnet/announcements/issues/372","https://github.com/dotnet/runtime/issues/120713","https://github.com/dotnet/runtime","https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55248"],"sourceUrl":"https://github.com/advisories/GHSA-gwq6-fmvp-qp68","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-gwq6-fmvp-qp68","identifiers":["GHSA-gwq6-fmvp-qp68","BIT-dotnet-2025-55248","BIT-dotnet-sdk-2025-55248","CVE-2025-55248"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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