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Unrated severityCISA KEVNVD Advisory· Published May 11, 2021· Updated Oct 21, 2025

HTTP Protocol Stack Remote Code Execution Vulnerability

CVE-2021-31166

Description

HTTP Protocol Stack Remote Code Execution Vulnerability

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3

Microsoft/Windows 10 1809v5
cpe:2.3:o:microsoft:windows_10_1809:10.0.19041.982:*:*:*:*:*:x64:*
Range: 10.0.0
Microsoft/Windows 10 1607v5
cpe:2.3:o:microsoft:windows_10_20H2:10.0.19042.982:*:*:*:*:*:x86:*
Range: 10.0.0
Microsoft/HTTP Protocol Stackllm-create

Patches

Vulnerability mechanics

References

2

packetstormsecurity.com/files/162722/Microsoft-HTTP-Protocol-Stack-Remote-Code-Execution.htmlmitrex_refsource_MISC
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31166mitrex_refsource_MISC

News mentions

0

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