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CVE-2011-2834

22
FAUCET Score

CVE-2011-2834 describes a double free vulnerability in libxml2, affecting products like Google Chrome, Apple, Debian, and Red Hat. This flaw, stemming from XPath handling, allows remote attackers to cause a denial of service and potentially other unspecified impacts. With a CVSS score of 6.8, it represents a medium severity risk that can be exploited over the network with medium attack complexity, leading to partial confidentiality, integrity, and availability compromise. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 14.0.835.163CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
< 6.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
< 10.7.4CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 is in the 67th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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 4Fixed in: libxml2-0:2.6.16-12.9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libxml2-0:2.6.26-2.1.12.el5_7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libxml2-0:2.7.6-4.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mingw32-libxml2-0:2.7.6-6.el6_3
View patch

Vendor Advisories (1)

redhatCVE-2011-2834Low

libxml2: double-free caused by malformed XPath expression in XSLT

Oct 11, 2011

References

code.google.com / p/chromium/issues/detail
googlechromereleases.blogspot.com / 2011/09/stable-channel-update_16.html
h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
lists.apple.com / archives/security-announce/2012/May/msg00001.html
lists.apple.com / archives/security-announce/2012/Sep/msg00003.html
osvdb.org / 75560
rhn.redhat.com / errata/RHSA-2013-0217.html
exchange.xforce.ibmcloud.com / vulnerabilities/69885
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14410
support.apple.com / kb/HT5281
support.apple.com / kb/HT5503
debian.org / security/2012/dsa-2394
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2011-1749.html