CVE-2015-3451

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.

Published: 2015-05-12 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-3451 is rated Moderate Risk (51.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.01%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-3451

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 3.36% 4.01% +0.65%
2 2026-05-13 4.98% 3.36% -1.61%
3 2025-12-28 — 4.98% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-3451

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2015-3451

OS Trackers for CVE-2015-3451

vendor priority summary link
debian not yet assigned CVE-2015-3451 not yet assigned priority: Debian including 1 source packages (libxml-libxml-perl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-3451
redhat low — https://access.redhat.com/security/cve/CVE-2015-3451
suse medium — https://www.suse.com/security/cve/CVE-2015-3451/
ubuntu medium CVE-2015-3451 medium priority: Ubuntu including 1 source packages (libxml-libxml-perl), 5 status rows across 5 suites (precise, trusty, upstream, utopic, vivid): released 5. https://ubuntu.com/security/CVE-2015-3451

Affected software / configurations for CVE-2015-3451

Vendor Product Version Raw CPE
xml-libxml_project xml-libxml <= 2.0118 cpe:2.3:a:xml-libxml_project:xml-libxml:*:*:*:*:*:perl:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 14.10 cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
canonical ubuntu_linux 15.04 cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
fedoraproject fedora 20 cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
fedoraproject fedora 21 cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
opensuse opensuse 13.1 cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
opensuse opensuse 13.2 cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*

References for CVE-2015-3451

URL Tags
http://advisories.mageia.org/MGASA-2015-0199.html Third Party Advisory
http://cpansearch.perl.org/src/SHLOMIF/XML-LibXML-2.0119/Changes Release Notes Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157448.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157740.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2015-09/msg00006.html Third Party Advisory
http://www.debian.org/security/2015/dsa-3243 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2015:231 Broken Link
http://www.openwall.com/lists/oss-security/2015/04/25/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/04/30/1 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/74333 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2592-1 Third Party Advisory
https://bitbucket.org/shlomif/perl-xml-libxml/commits/5962fd067580767777e94640b129ae8930a68a30/raw/ Vendor Advisory
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