{"id":"CVE-2026-62896","aliases":["EUVD-2026-54312","GHSA-x274-p4gq-2363"],"status":"published","title":"Microsoft Teams Elevation of Privilege Vulnerability","description":"Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/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":0.00689,"percentile":0.53026,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2026-08-06T22:37:35Z","modified":"2026-10-30T17:19:17Z","products":[{"vendor":"microsoft","product":"microsoft teams"},{"vendor":"microsoft","product":"teams"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62896","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62896"},{"url":"https://github.com/advisories/GHSA-x274-p4gq-2363"}],"sources":{"cve":[{"id":"CVE-2026-62896","title":"Microsoft Teams Elevation of Privilege Vulnerability","description":"Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-08-06T22:37:35.575Z","modified":"2026-10-30T17:19:17.409Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:20:14.999906Z"}],"euvd":[{"id":"EUVD-2026-54312","description":"Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-08-06T22:37:35Z","modified":"2026-10-30T17:19:17Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T16:59:05.130363Z"}],"ghsa":[{"id":"GHSA-x274-p4gq-2363","title":"Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges...","description":"Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-08-07T00:31:23Z","modified":"2026-08-07T00:31:33Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:10:11.041675Z"}],"nvd":[{"id":"CVE-2026-62896","description":"Improper authentication in Microsoft Teams allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-08-07T00:16:36.59Z","modified":"2026-10-24T16:10:00.153Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:12:35.386166Z"}]}}