November 8, 2022 · Applied Cybernetics Group
CVE-2022-41091 — Microsoft Windows
known ransomware use
Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability
- Added to KEV
2022-11-08- Federal due date
2022-12-09- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 91.1th percentile (score 0.063, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2022-41091
CISA short description
Microsoft Windows Mark of the Web (MOTW) contains a security feature bypass vulnerability resulting in a limited loss of integrity and availability of security features.
Required action
Apply updates per vendor instructions.