Is CVE-2015-3451 in the CISA KEV catalog?

No. CVE-2015-3451 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-3451?

CVE-2015-3451 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2015-3451?

CVE-2015-3451 has an EPSS score of 4.01% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-3451?

Upgrade libxml-libxml-perl on debian 11 to 2.0116+dfsg-2 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2015-3451

MEDIUMEPSS 89th pctl

5.0

CVSS v2

NVD

Description

The _clone function in XML::LibXML before 2.0119 does not properly set the expand_entities option, which allows remote attackers to conduct XML external entity (XXE) attacks via crafted XML data to the (1) new or (2) load_xml function.

CWE-611XML External Entity (XXE)

How to fix

Remediation Available

libxml-libxml-perlDebian

Fixed in:2.0116+dfsg-2CVE-2015-3451

libxml-libxml-perlUbuntu

Fixed in:2.0108+dfsg-1ubuntu0.1USN-2592-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.01%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Vendor Advisory1

bitbucket.org

Third-Party Advisory10

Other references1

mandriva.com

Related Vulnerabilities

Other CWE-611 (XML External Entity (XXE)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-34102	Critical	9.8	100%	KEV	Fix
CVE-2019-9670	Critical	9.8	100%	KEV	Fix
CVE-2022-28219	Critical	9.8	97%	-	-
CVE-2024-22024	High	8.3	95%	-	-
CVE-2024-38653	High	7.5	92%	-	-
CVE-2017-12629	Critical	9.8	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 2026-05-06.