VIR Vulnerability Intelligence Relay

CVE-2021-31166

unknown KEV
Published 2022-04-06 · Modified 2022-04-06
CVSS v3
—
CVSS v2
—
VIR risk
1.5

Description

Microsoft HTTP Protocol Stack contains a vulnerability in http.sys that allows for remote code execution.

CISA KEV

Vendor
Microsoft
Product
HTTP Protocol Stack
Due date
2022-04-27

Predictions

Exploit likelihood
99%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: cisa-kev — https://nvd.nist.gov/vuln/detail/CVE-2021-31166

Exploits

References

Verify integrity in audit chain (admin only). AS-IS.