CVE-2021-31166: HTTP Protocol Stack Remote Code Execution Vulnerability
Critical · CVSS 9.8 (CVSS 3.1)KEV known exploitedEPSS 99.9%, 100th percentilePublished Updated Assigner: microsoft
In CISA’s Known Exploited Vulnerabilities catalog: Microsoft HTTP Protocol Stack Remote Code Execution Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
Description
HTTP Protocol Stack Remote Code Execution Vulnerability
Vector 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
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Microsoft: Windows 10 Version 2004Microsoft: Windows 10 Version 20H2Microsoft: Windows Server version 2004Microsoft: Windows Server version 20H2
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- packetstormsecurity.com/files/162722/Microsoft-HTTP-Protocol-Stack-Remote-Code-Execution.html (opens in new tab)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31166 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)