{"containers":{"cna":{"title":"HTTP Protocol Stack Remote Code Execution Vulnerability","datePublic":"2021-05-11T07:00:00.000Z","affected":[{"vendor":"Microsoft","product":"Windows 10 Version 2004","cpes":["cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.982:*:*:*:*:*:x64:*"],"platforms":["32-bit Systems","ARM64-based Systems","x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.19041.982","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server version 2004","cpes":["cpe:2.3:o:microsoft:windows_server_2004:10.0.19041.982:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.19041.982","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows 10 Version 20H2","cpes":["cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.982:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.982:*:*:*:*:*:arm64:*"],"platforms":["32-bit Systems","ARM64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.19042.982","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Windows Server version 20H2","cpes":["cpe:2.3:o:microsoft:windows_server_20H2:10.0.19042.982:*:*:*:*:*:*:*"],"platforms":["x64-based Systems"],"versions":[{"version":"10.0.0","lessThan":"10.0.19042.982","versionType":"custom","status":"affected"}]}],"descriptions":[{"value":"HTTP Protocol Stack Remote Code Execution Vulnerability","lang":"en-US"}],"problemTypes":[{"descriptions":[{"description":"Remote Code Execution","lang":"en-US","type":"Impact"}]}],"providerMetadata":{"orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","shortName":"microsoft","dateUpdated":"2023-12-28T23:56:49.266Z"},"references":[{"tags":["x_refsource_MISC"],"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31166"},{"tags":["x_refsource_MISC"],"url":"http://packetstormsecurity.com/files/162722/Microsoft-HTTP-Protocol-Stack-Remote-Code-Execution.html"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","baseSeverity":"CRITICAL","baseScore":9.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}}]},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T22:55:52.129Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31166"},{"tags":["x_refsource_MISC","x_transferred"],"url":"http://packetstormsecurity.com/files/162722/Microsoft-HTTP-Protocol-Stack-Remote-Code-Execution.html"}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-31166","role":"CISA Coordinator","options":[{"Exploitation":"active"},{"Automatable":"yes"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-02-07T14:36:57.411562Z"}}},{"other":{"type":"kev","content":{"dateAdded":"2022-04-06","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31166"}}}],"references":[{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31166","tags":["government-resource"]}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-416","description":"CWE-416 Use After Free"}]}],"timeline":[{"time":"2022-04-06T00:00:00.000Z","lang":"en","value":"CVE-2021-31166 added to CISA KEV"}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-21T23:25:45.988Z"}}]},"cveMetadata":{"assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","assignerShortName":"microsoft","cveId":"CVE-2021-31166","datePublished":"2021-05-11T19:11:19.000Z","dateReserved":"2021-04-14T00:00:00.000Z","dateUpdated":"2025-10-21T23:25:45.988Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}