Is CVE-2013-1331 in the CISA KEV catalog?

Yes. CVE-2013-1331 is on the CISA Known Exploited Vulnerabilities list, added 2022-06-08.

What is the CVSS severity of CVE-2013-1331?

CVE-2013-1331 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2013-1331?

CVE-2013-1331 has an EPSS score of 81.88% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2013-1331?

No published fix for CVE-2013-1331 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-06-22. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2013-1331

HIGHCISA KEVEPSS 100th pctl

7.8

CVSS v3

NVD

Description

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."

CWE-120Classic Buffer Overflow

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply updates per vendor instructions.

Federal remediation due: 2022-06-22

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

81.88%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

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.

Remediation due: 2022-06-22

References

Patch1

docs.microsoft.com

Third-Party Advisory1

us-cert.gov

Government Resource1

cisa.gov

Other references2

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	92%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-22.