CVE-2013-1331: Microsoft Office Buffer Overflow Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-06-08. EPSS: 79.8% chance of exploitation in the next 30 days.

Buffer overflow in Microsoft Office 2003 SP3 and Office 2011 for Mac allows remote attackers to execute arbitrary code via crafted PNG data in an Office document, leading to improper memory allocation, aka "Office Buffer Overflow Vulnerability."

Affected products

• Microsoft Office: version 2003 only; version 2011 only

Published 2013-06-12. Last modified 2026-06-16.