Microsoft XML Core Services Memory Corruption Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-06-08
• EPSS: 84% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]Official description

Microsoft XML Core Services 3.0, 4.0, 5.0, and 6.0 accesses uninitialized memory locations, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

CISA: Microsoft XML Core Services contains a memory corruption vulnerability which could allow for remote code execution.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 22 Jun 2022): Apply updates per vendor instructions.

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

[ References ]References

• technet.microsoft.com/security/advisory/2719615Vendor Advisory
• www.us-cert.gov/cas/techalerts/TA12-174A.htmlThird Party AdvisoryUS Government Resource
• www.us-cert.gov/cas/techalerts/TA12-192A.htmlThird Party AdvisoryUS Government Resource
• docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-043PatchVendor Advisory
• oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15195Broken Link
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource