Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability (CVE-2022-41091)
Severity: medium · Patch status: patched · Since 2022-11-08 · CVE-2022-41091
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. CISA added CVE-2022-41091 to its Known Exploited Vulnerabilities catalog on Nov 8, 2022, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Dec 9, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
