CVE-2022-41091

CVE-2022-41091 is a medium-severity (CVSS 5.4) vulnerability in Microsoft Windows. CISA added it to the Known Exploited Vulnerabilities catalog on November 8, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by December 9, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Microsoft has 390 vulnerabilities in the KEV catalog, 117 of them linked to ransomware.

Windows Mark of the Web Security Feature Bypass Vulnerability

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41091
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41091
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41091