{"id":"CVE-2026-58649","revision":"330fb71dd7de4851966e3d0ad7e7ab81","records":[{"revision":"330fb71dd7de4851966e3d0ad7e7ab81","observedAt":"2026-10-30T22:45:26.427+00:00","statement":{"source":"cve-program","id":"CVE-2026-58649","aliases":[],"title":".NET Information Disclosure Vulnerability","description":"Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.","state":0,"publishedAt":"2026-09-08T17:17:36.706+00:00","modifiedAt":"2026-10-30T21:55:57.546+00:00","affected":[{"ecosystem":"Vendor product","name":".NET 10.0 runtime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 10.0 runtime\",\n                    \"versions\": [\n                        {\n                            \"version\": \"10.0.0\",\n                            \"lessThan\": \"10.0.111, 10.0.400\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":".NET 11.0 runtime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 11.0 runtime\",\n                    \"versions\": [\n                        {\n                            \"version\": \"11.0.0\",\n                            \"lessThan\": \"11.0 RC1\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":".NET 8.0 runtime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 8.0 runtime\",\n                    \"versions\": [\n                        {\n                            \"version\": \"8.0.0\",\n                            \"lessThan\": \"8.0.130, 8.0.424\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":".NET 9.0 runtime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \".NET 9.0 runtime\",\n                    \"versions\": [\n                        {\n                            \"version\": \"9.0.0\",\n                            \"lessThan\": \"9.0.120, 9.0.317\",\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\": \"17.14.40\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Visual Studio 2026 version 18.9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Visual Studio 2026 version 18.9\",\n                    \"versions\": [\n                        {\n                            \"version\": \"18.9.0\",\n                            \"lessThan\": \"18.9.3\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","score":6.5,"severity":"MEDIUM"}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58649"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-58649","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-58649","identifiers":["CVE-2026-58649"]},"retained":false,"historicalAffected":[]}],"coverage":[]}