Microsoft COM for Windows Deserialization of Untrusted Data Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2024-08-05
• EPSS: 73% chance of exploitation in the next 30 days (higher than 99% of CVEs)

[ Description ]Official description

A remote code execution vulnerability exists in "Microsoft COM for Windows" when it fails to properly handle serialized objects, aka "Microsoft COM for Windows Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

CISA: Microsoft COM for Windows contains a deserialization of untrusted data vulnerability that allows for privilege escalation and remote code execution via a specially crafted file or script.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 26 Aug 2024): Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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

[ References ]References

• www.securityfocus.com/bid/104030Broken LinkThird Party AdvisoryVDB Entry
• www.securitytracker.com/id/1040848Broken LinkThird Party AdvisoryVDB Entry
• portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0824PatchVendor Advisory
• www.exploit-db.com/exploits/44906ExploitThird Party AdvisoryVDB Entry
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource