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MSRC compact vulnerability detail

CVE-2021-31166 · HTTP Protocol Stack Remote Code Execution Vulnerability

No description was published by MSRC.

Severity
Critical
Impact
Remote Code Execution
CVSS
9.8 base · 8.5 temporal
Release
2021-05-11
Signals
Windows HTTP.sys Remote Code Execution Exploited: No Publicly disclosed: No Exploitability: Exploitation More Likely
CWE
No CWE data published.
Patch Diff
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Resolved binary override
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Description
No description was published by MSRC.
FAQ / Articles
FAQ
How could an attacker exploit this vulnerability? In most situations, an unauthenticated attacker could send a specially crafted packet to a targeted server utilizing the HTTP Protocol Stack (http.sys) to process packets. Is this wormable? Yes. Microsoft recommends prioritizing the patching of affected servers.