{"id":"CVE-2022-21965","aliases":["EUVD-2022-27120","GHSA-mrg4-hwp5-c6hc"],"status":"published","title":"Microsoft Teams Denial of Service Vulnerability","description":"Microsoft Teams Denial of Service Vulnerability","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.02965,"percentile":0.87323,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-02-09T16:36:22Z","modified":"2026-06-17T04:27:22Z","products":[{"vendor":"microsoft","product":"microsoft teams admin center"},{"vendor":"microsoft","product":"microsoft teams for android"},{"vendor":"microsoft","product":"microsoft teams for ios"},{"vendor":"microsoft","product":"teams"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21965","tags":["vendor-advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21965","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21965"},{"url":"https://github.com/advisories/GHSA-mrg4-hwp5-c6hc"}],"sources":{"cve":[{"id":"CVE-2022-21965","title":"Microsoft Teams Denial of Service Vulnerability","description":"Microsoft Teams Denial of Service Vulnerability","status":"published","published":"2022-02-09T16:36:22Z","modified":"2025-01-02T18:28:03.225Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:34:29.057251Z"}],"euvd":[{"id":"EUVD-2022-27120","description":"Microsoft Teams Denial of Service Vulnerability","status":"published","published":"2022-02-09T16:36:22Z","modified":"2025-01-02T18:28:03Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T00:04:29.532536Z"}],"ghsa":[{"id":"GHSA-mrg4-hwp5-c6hc","title":"Microsoft Teams Denial of Service Vulnerability.","description":"Microsoft Teams Denial of Service Vulnerability.","status":"published","published":"2022-02-10T00:00:25Z","modified":"2025-01-02T21:31:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T14:59:20.17728Z"}],"nvd":[{"id":"CVE-2022-21965","description":"Microsoft Teams Denial of Service Vulnerability","status":"published","published":"2022-02-09T17:15:08.537Z","modified":"2026-06-17T04:27:22.387Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:11.52734Z"}]}}