CVE-2022-41091
Published: November 8, 2022
Official 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.
CISA KEV Advisory
Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability
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.
Apply updates per vendor instructions.
Risk Analysis
This Microsoft Windows Mark of the Web (MOTW) vulnerability allows attackers to bypass security features, leading to a limited loss of integrity and availability. Its inclusion in CISA's KEV catalog and an EPSS score of 0.06952 indicate a high likelihood of exploitation, making it an urgent security concern.
Active exploitation of this vulnerability has been observed in the wild, and it is confirmed to be in CISA's Known Exploited Vulnerabilities (KEV) catalog.
Apply the latest security updates from Microsoft to address the Mark of the Web (MOTW) security feature bypass vulnerability.
Technical Analysis
CVE-2022-41091 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2022-41091 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-41091 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1