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CVE-2012-4181

24
FAUCET Score

CVE-2012-4181 is a use-after-free vulnerability in the nsSMILAnimationController::DoSample function affecting Mozilla Firefox, Firefox ESR, Thunderbird, Thunderbird ESR, and SeaMonkey. This critical vulnerability, with a CVSS score of 9.3, allows remote attackers to execute arbitrary code or cause a denial of service through heap memory corruption via unspecified vectors, requiring medium attack complexity. Despite its high severity, there is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.0.8CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 10.0.8CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:*
< 16.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 16.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
< 2.13CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.80%
Probability of exploitation in next 30 days
EPSS Percentile
91.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0480 is in the 57th percentile among its peer group of 8,914 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:10.0.8-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:10.0.8-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:10.0.8-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:10.0.8-1.el6_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:10.0.8-1.el6_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:10.0.8-1.el6_3
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2012-4181Critical

Mozilla: Use-after-free, buffer overflow, and out of bounds read issues found using Address Sanitizer (MFSA 2012-85)

Oct 9, 2012

References

lists.opensuse.org / opensuse-security-announce/2012-10/msg00010.html
Mailing ListThird Party Advisory
osvdb.org / 86100
Broken Link
rhn.redhat.com / errata/RHSA-2012-1351.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingVendor Advisory
secunia.com / advisories/50856
Third Party Advisory
secunia.com / advisories/50892
Third Party Advisory
secunia.com / advisories/50904
Third Party Advisory
secunia.com / advisories/50935
Third Party Advisory
secunia.com / advisories/50936
Third Party Advisory
secunia.com / advisories/55318
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/79159
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16523
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
mozilla.org / security/announce/2012/mfsa2012-85.html
Vendor Advisory
securityfocus.com / bid/56130
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-1611-1
Third Party Advisory