CVE-2013-1331
Published: June 8, 2022
Official Description
Microsoft Office contains a buffer overflow vulnerability that allows remote attackers to execute code via crafted PNG data in an Office document.
CISA KEV Advisory
Microsoft Office Buffer Overflow Vulnerability
Microsoft Office contains a buffer overflow vulnerability that allows remote attackers to execute code via crafted PNG data in an Office document.
Apply updates per vendor instructions.
Risk Analysis
A buffer overflow vulnerability in Microsoft Office allows remote attackers to execute arbitrary code by embedding specially crafted PNG data within an Office document. This is a high-severity flaw with an EPSS score of 0.88918, and its presence in the KEV catalog confirms it has been actively exploited, making it a critical threat.
This vulnerability has been actively exploited in the wild and is part of CISA's KEV catalog. Exploitation typically occurs when a user opens a malicious Office document.
Ensure all Microsoft Office installations are fully updated with the latest security patches. Educate users about the risks of opening untrusted Office documents and implement robust email and endpoint security solutions.
Technical Analysis
CVE-2013-1331 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2013-1331 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2013-1331 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1