CVE-2012-2539: Microsoft Word Remote Code Execution Vulnerability

Vulnerability summary

CVE-2012-2539 is a high (CVSS 9.3) Out-of-bounds Write vulnerability in Microsoft Word. It is known to be exploited: CISA lists it, first on 28-03-2022. EPSS estimates a 53.03% chance of exploitation in the next 30 days, higher than 98.9% of scored vulnerabilities.

Timeline

1. 12-12-2012
   PublishedVulnerability first disclosed.
2. 28-03-2022
   Added to CISA KEVMicrosoft Word Remote Code Execution Vulnerability
3. 18-04-2022
   CISA remediation dueApply updates per vendor instructions.
4. 22-10-2025
   Last modifiedVulnerability information updated.

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."

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.