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CVE-2012-0841

19
FAUCET Score

CVE-2012-0841 describes a denial-of-service vulnerability in libxml2 versions prior to 2.8.0, affecting products such as Apple iPhone OS and xmlsoft libxml2. This flaw allows attackers to cause high CPU consumption by exploiting predictable hash collisions in crafted XML data. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P), it is a network-exploitable vulnerability with low attack complexity, leading to partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.7.8CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
1.7.0CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:1.7.0:*:*:*:*:*:*:*
1.7.1CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:1.7.1:*:*:*:*:*:*:*
1.7.2CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:1.7.2:*:*:*:*:*:*:*
1.7.3CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:1.7.3:*:*:*:*:*:*:*

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
3.26%
Probability of exploitation in next 30 days
EPSS Percentile
87.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0326 is in the 82nd percentile among its peer group of 23,701 CVEs.

Social Chatter

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

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 5Fixed in: libxml2-0:2.6.26-2.1.15.el5_8.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libxml2-0:2.7.6-4.el6_2.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mingw32-libxml2-0:2.7.6-6.el6_3
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: libxml2

Vendor Advisories (1)

redhatCVE-2012-0841Moderate

libxml2: hash table collisions CPU usage DoS

Feb 21, 2012

References

bugs.debian.org / cgi-bin/bugreport.cgi
git.gnome.org / browse/libxml2/commit
lists.apple.com / archives/security-announce/2013/Oct/msg00009.html
lists.apple.com / archives/security-announce/2013/Sep/msg00006.html
lists.opensuse.org / opensuse-security-announce/2013-11/msg00002.html
rhn.redhat.com / errata/RHSA-2012-0324.html
rhn.redhat.com / errata/RHSA-2013-0217.html
blogs.oracle.com / sunsecurity/entry/cve_2012_0841_denial_of
secunia.com / advisories/54886
secunia.com / advisories/55568
securitytracker.com / id
support.apple.com / kb/HT5934
support.apple.com / kb/HT6001
debian.org / security/2012/dsa-2417
mandriva.com / security/advisories
openwall.com / lists/oss-security/2012/02/22/1
oracle.com / technetwork/topics/security/cpuapr2013-1899555.html
securityfocus.com / bid/52107
Patch
xerox.com / download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
xmlsoft.org / news.html