{"id":"CVE-2026-65667","aliases":["EUVD-2026-54322","GHSA-qf3x-g8x3-rcjc"],"status":"published","title":"Microsoft Teams Elevation of Privilege Vulnerability","description":"Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00798,"percentile":0.5678,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-08-06T22:37:43Z","modified":"2026-10-30T17:23:11Z","products":[{"vendor":"microsoft","product":"microsoft teams"},{"vendor":"microsoft","product":"teams"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65667","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65667"},{"url":"https://github.com/advisories/GHSA-qf3x-g8x3-rcjc"}],"sources":{"cve":[{"id":"CVE-2026-65667","title":"Microsoft Teams Elevation of Privilege Vulnerability","description":"Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-08-06T22:37:43.746Z","modified":"2026-10-30T17:23:11.797Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T13:37:13.934727Z"}],"euvd":[{"id":"EUVD-2026-54322","description":"Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-08-06T22:37:43Z","modified":"2026-10-30T17:23:11Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T16:59:03.451007Z"}],"ghsa":[{"id":"GHSA-qf3x-g8x3-rcjc","title":"Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges...","description":"Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-08-07T00:31:24Z","modified":"2026-08-07T00:31:33Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:10:11.041675Z"}],"nvd":[{"id":"CVE-2026-65667","description":"Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.","status":"published","published":"2026-08-07T00:16:38.68Z","modified":"2026-10-24T16:10:00.153Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:35.386166Z"}]}}