Microsoft Office Remote Code Execution Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-02-25
• EPSS: 90% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]Official description

Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-0243.

CISA: A remote code execution vulnerability exists in Microsoft Office software when it fails to properly handle objects in memory.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 25 Aug 2022): Apply updates per vendor instructions.

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

[ References ]References

• www.securityfocus.com/bid/99445Broken LinkThird Party AdvisoryVDB Entry
• github.com/ParsingTeam/ppsx-file-generatorExploitThird Party Advisory
• github.com/rxwx/CVE-2017-8570Third Party Advisory
• github.com/tezukanice/Office8570ExploitThird Party Advisory
• portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8570PatchVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource