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CVE-2015-1819

17
FAUCET Score

CVE-2015-1819 describes a denial-of-service vulnerability in the xmlreader component of libxml, affecting various products including Apple, Canonical, Debian, and Red Hat. This flaw, categorized as an XML Entity Expansion (XEE) attack, allows remote attackers to consume excessive memory through crafted XML data. With a CVSS score of 5.0, it has a low attack complexity and requires no authentication, leading to a partial availability impact. Despite its potential for denial of service, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
15.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.34%
Probability of exploitation in next 30 days
EPSS Percentile
92.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0634 is in the 90th percentile among its peer group of 23,701 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libxml2-0:2.7.6-20.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libxml2-0:2.9.1-6.el7_2.2
View patch
rubygemspatch availablevia ghsa
Product: nokogiriFixed in: 1.6.6.4
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libxml2

Vendor Advisories (2)

rubygemsGHSA-q7wx-62r7-j2x7medium

Nokogiri vulnerable to libxml XML Entity Expansion

Aug 8, 2018
redhatCVE-2015-1819Low

libxml2: denial of service processing a crafted XML document

Apr 14, 2015

References

lists.apple.com / archives/security-announce/2016/Mar/msg00000.html
Mailing ListThird Party Advisory
lists.apple.com / archives/security-announce/2016/Mar/msg00001.html
Mailing ListThird Party Advisory
lists.apple.com / archives/security-announce/2016/Mar/msg00002.html
Mailing ListThird Party Advisory
lists.apple.com / archives/security-announce/2016/Mar/msg00004.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-November/172710.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-November/172943.html
Third Party Advisory
lists.opensuse.org / opensuse-updates/2015-12/msg00120.html
Third Party Advisory
lists.opensuse.org / opensuse-updates/2016-01/msg00031.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-1419.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-2550.html
Third Party Advisory
git.gnome.org / browse/libxml2/commit
PatchVendor Advisory
security.gentoo.org / glsa/201507-08
Third Party Advisory
security.gentoo.org / glsa/201701-37
Third Party Advisory
support.apple.com / HT206166
Third Party Advisory
support.apple.com / HT206167
Third Party Advisory
support.apple.com / HT206168
Third Party Advisory
support.apple.com / HT206169
Third Party Advisory
debian.org / security/2015/dsa-3430
Third Party Advisory
oracle.com / technetwork/topics/security/bulletinoct2015-2511968.html
Third Party Advisory
oracle.com / technetwork/topics/security/linuxbulletinoct2015-2719645.html
Third Party Advisory
securityfocus.com / bid/75570
Third Party AdvisoryVDB Entry
securitytracker.com / id/1034243
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2812-1
Third Party Advisory
xmlsoft.org / news.html
Third Party Advisory