{"id":"CVE-2026-66302","title":"External control of file name or path in Skype for Business allows an unauthorized attacker to execute code over a network.","summary":"External control of file name or path in Skype for Business allows an unauthorized attacker to execute code over a network.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-73"],"vendor":"microsoft","product":"skype_for_business_server","affected":["skype_for_business_server = 2015","skype_for_business_server = 2019","skype_for_business_server_subscription_edition = 7.0.2046.849"],"published":"2026-09-08","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:22:34.813","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-66302","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66302","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00532,"epssPercentile":0.43682,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-09-09T04:26:28.465510Z"},"ingestedAt":"2026-09-08T19:08:49.638Z","slug":"CVE-2026-66302","body":"## Overview\n\nExternal control of file name or path in Skype for Business allows an unauthorized attacker to execute code over a network.\n\n## Affected\n\n- `skype_for_business_server = 2015`\n- `skype_for_business_server = 2019`\n- `skype_for_business_server_subscription_edition = 7.0.2046.849`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}