{"id":"CVE-2026-66302","aliases":[],"title":"Skype for Business Remote Code Execution Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","products":[{"vendor":"Microsoft","name":"Skype for Business Server 2015 CU13","platforms":["x64-based Systems"],"versions":[{"version":"9319.0","status":"affected","lessThan":"6.0.9319.885","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-66302"},{"vendor":"Microsoft","name":"Skype for Business Server 2019 CU8","platforms":["x64-based Systems"],"versions":[{"version":"2046.0","status":"affected","lessThan":"7.0.2046.569","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-66302"},{"vendor":"Microsoft","name":"Skype for Business Server Subscription Edition CU1","platforms":["x64-based Systems"],"versions":[{"version":"2046.0","status":"affected","lessThan":"7.0.2046.879","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-66302"}],"remediation":[],"description":"External control of file name or path in Skype for Business allows an unauthorized attacker to execute code over a network.","severity":"critical","score":9.8,"published":"2026-09-08T18:30:35.349Z","modified":"2026-10-26T23:24:39.870Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66302"],"sources":[{"name":"CVE","id":"CVE-2026-66302","modified":"2026-10-26T23:24:39.870Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-66302"}],"assessments":[{"source":"microsoft","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","score":9.8}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T04:50:31.701Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}