Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2023-01-10
• EPSS: 41% chance of exploitation in the next 30 days (higher than 99% of CVEs)

[ Description ]Official description

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

CISA: Microsoft Windows Advanced Local Procedure Call (ALPC) contains an unspecified vulnerability that allows for privilege escalation.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 31 Jan 2023): Apply updates per vendor instructions.

• Patch on msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ References ]References

• msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674PatchVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource