{ "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" }