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CVE-2021-31166

HTTP Protocol Stack Remote Code Execution Vulnerability

Published
Last modified
published
Listed in CISA KEV
Fix
Fixed in 10.0.19041.982, 10.0.19042.982
None on Exploit-DB, Metasploit or GitHub

Summary

The affected software is the HTTP protocol stack component, which handles web communication. A successful attack could allow an attacker to run arbitrary code remotely on a system that processes malicious HTTP traffic.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

HTTP Protocol Stack Remote Code Execution Vulnerability

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Microsoft Windows 10 Version 2004

    From 10.0.0 · fixed in 10.0.19041.982

  • Microsoft Windows Server version 2004

    From 10.0.0 · fixed in 10.0.19041.982

  • Microsoft Windows 10 Version 20H2

    From 10.0.0 · fixed in 10.0.19042.982

  • Microsoft Windows Server version 20H2

    From 10.0.0 · fixed in 10.0.19042.982

References 2

portal.msrc.microsoft.com

packetstormsecurity.com