Microsoft HTTP Protocol Stack Remote Code Execution Vulnerability

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

cat cve-2021-31166.json

Vendor: Microsoft
Product: HTTP Protocol Stack
CVSS: 9.8
EPSS (exploit probability): 99.7%
Status: kev
CISA patch-by (BOD 22-01): April 27, 2022
Published: April 6, 2022
Source: https://nvd.nist.gov/vuln/detail/CVE-2021-31166

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

Added to CISA’s Known Exploited Vulnerabilities catalog on 2022-04-06. Required action per CISA: Apply updates per vendor instructions. Due date: 2022-04-27.

This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.