{"id":"CVE-2026-70279","revision":"cae2d03a2cae4256b8d4acb6cac358f0","records":[{"revision":"cae2d03a2cae4256b8d4acb6cac358f0","observedAt":"2026-10-23T23:48:20.643+00:00","statement":{"source":"cve-program","id":"CVE-2026-70279","aliases":[],"title":"Microsoft Exchange Server Spoofing Vulnerability","description":"Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.","state":0,"publishedAt":"2026-10-13T19:01:10.033+00:00","modifiedAt":"2026-10-23T22:29:38.054+00:00","affected":[{"ecosystem":"Vendor product","name":"Microsoft Exchange Server 2016 Cumulative Update 23","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Exchange Server 2016 Cumulative Update 23\",\n                    \"platforms\": [\n                        \"x64-based Systems\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"15.01.0.0\",\n                            \"lessThan\": \"15.01.2507.077\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Exchange Server 2019 Cumulative Update 14","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Exchange Server 2019 Cumulative Update 14\",\n                    \"platforms\": [\n                        \"x64-based Systems\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"15.02.0.0\",\n                            \"lessThan\": \"15.02.1544.050\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Exchange Server 2019 Cumulative Update 15","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Exchange Server 2019 Cumulative Update 15\",\n                    \"platforms\": [\n                        \"x64-based Systems\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"15.02.0.0\",\n                            \"lessThan\": \"15.02.1748.055\",\n                            \"versionType\": \"custom\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Microsoft Exchange Server Subscription Edition RTM","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Microsoft\",\n                    \"product\": \"Microsoft Exchange Server Subscription Edition RTM\",\n                    \"platforms\": [\n                        \"x64-based Systems\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"15.02.0.0\",\n                            \"lessThan\": \"15.02.2562.056\",\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:C/C:H/I:H/A:N/E:U/RL:O/RC:C","score":9.3,"severity":"CRITICAL"}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70279"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-70279","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-70279","identifiers":["CVE-2026-70279"]},"retained":false,"historicalAffected":[]}],"coverage":[]}