CVE-2012-2539

microsoft office compatibility pack, microsoft office web apps, microsoft office word viewer

Published 12 Dec 2012 · updated 16 Jun 2026 · Analyzed

7.8 High · CVSS 3.1, CISA ADP

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 28 Mar 2022, with a remediation deadline of 18 Apr 2022 for US federal agencies.

Required action: Apply updates per vendor instructions.

Description

Microsoft Word 2003 SP3, 2007 SP2 and SP3, and 2010 SP1; Word Viewer; Office Compatibility Pack SP2 and SP3; and Office Web Apps 2010 SP1 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted RTF data, aka "Word RTF 'listoverridecount' Remote Code Execution Vulnerability."

References

www.us-cert.gov/cas/techalerts/TA12-346A.html · Third Party Advisory, US Government Resource
docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-079 · Patch, Vendor Advisory
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16073 · Broken Link
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-2539 · US Government Resource