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CVE-2013-1331

HIGH · CVSS 7.8CISA KEV: actively exploitedEPSS 79.8%EU EUVD: exploited

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."

Key facts

CVSS score
7.8 (v3.1)
Severity
HIGH
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-120
EPSS score
79.8% (100th percentile)
In CISA KEV
Yes, added June 8, 2022
In EU EUVD
Yes (EUVD-2013-1371)
Published
June 12, 2013
NVD last modified
June 16, 2026
Status
Analyzed

CISA Known Exploited Vulnerability

Microsoft Office Buffer Overflow Vulnerability

Added to the KEV catalog on June 8, 2022; federal remediation due June 22, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-1371 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

  • microsoft / office
  • microsoft / office

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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