{"id":"CVE-2022-21911","aliases":["EUVD-2022-27067","GHSA-hjxm-5f5m-prmm"],"status":"published","title":".NET Framework Denial of Service Vulnerability","description":".NET Framework 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":0.03225,"percentile":0.88332,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-01-11T20:23:12Z","modified":"2026-06-17T04:27:15Z","products":[{"vendor":"microsoft","product":".net_framework"},{"vendor":"microsoft","product":"microsoft .net framework 2.0 service pack 2"},{"vendor":"microsoft","product":"microsoft .net framework 3.5"},{"vendor":"microsoft","product":"microsoft .net framework 3.5 and 4.6.2/4.7/4.7.1/4.7.2"},{"vendor":"microsoft","product":"microsoft .net framework 3.5 and 4.7.2"},{"vendor":"microsoft","product":"microsoft .net framework 3.5 and 4.8"},{"vendor":"microsoft","product":"microsoft .net framework 3.5.1"},{"vendor":"microsoft","product":"microsoft .net framework 4.5.2"},{"vendor":"microsoft","product":"microsoft .net framework 4.6"},{"vendor":"microsoft","product":"microsoft .net framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2"},{"vendor":"microsoft","product":"microsoft .net framework 4.8"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21911","tags":["vendor-advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-21911","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21911"},{"url":"https://github.com/advisories/GHSA-hjxm-5f5m-prmm"}],"sources":{"cve":[{"id":"CVE-2022-21911","title":".NET Framework Denial of Service Vulnerability","description":".NET Framework Denial of Service Vulnerability","status":"published","published":"2022-01-11T20:23:12Z","modified":"2025-01-02T18:22:31.93Z","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":"2026-11-02T14:34:28.707644Z"}],"euvd":[{"id":"EUVD-2022-27067","description":".NET Framework Denial of Service Vulnerability","status":"published","published":"2022-01-11T20:23:12Z","modified":"2025-01-02T18:22:31Z","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/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T00:04:29.532536Z"}],"ghsa":[{"id":"GHSA-hjxm-5f5m-prmm","title":".NET Framework Denial of Service Vulnerability.","description":".NET Framework Denial of Service Vulnerability.","status":"published","published":"2022-01-12T00:00:38Z","modified":"2024-11-14T21:31:54Z","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":"2026-11-02T14:58:50.242407Z"}],"nvd":[{"id":"CVE-2022-21911","description":".NET Framework Denial of Service Vulnerability","status":"published","published":"2022-01-11T21:15:13.027Z","modified":"2026-06-17T04:27:15.55Z","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":"2026-11-02T14:07:10.836864Z"}]}}