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CVE-2012-4188

35
FAUCET Score

CVE-2012-4188 describes a critical heap-based buffer overflow vulnerability in the Convolve3x3 function affecting multiple Mozilla products, including Firefox, Thunderbird, and SeaMonkey, as well as their ESR versions. This flaw allows remote attackers to execute arbitrary code. With a CVSS score of 9.3 (Critical) and a FAUCET Risk Score of 98/100, it poses a significant risk due to its network-based attack vector, medium attack complexity, and complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog and lacking public exploit intelligence like Metasploit or ExploitDB modules, its high EPSS score suggests a notable probability of exploitation. Community discussion and media coverage for this CVE are minimal.

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
14.70%
Probability of exploitation in next 30 days
EPSS Percentile
96.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.1470 is in the 80th percentile among its peer group of 8,915 CVEs.

Social Chatter

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-2012-4188Critical

Mozilla: Heap memory corruption issues found using Address Sanitizer (MFSA 2012-86)

Oct 9, 2012

References

lists.opensuse.org / opensuse-security-announce/2012-10/msg00010.html
Mailing ListThird Party Advisory
osvdb.org / 86096
Broken Link
rhn.redhat.com / errata/RHSA-2012-1351.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue Tracking
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/50984
Third Party Advisory
secunia.com / advisories/51181
Third Party Advisory
secunia.com / advisories/55318
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/79165
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16964
Third Party Advisory
debian.org / security/2012/dsa-2565
Third Party Advisory
debian.org / security/2012/dsa-2569
Third Party Advisory
debian.org / security/2012/dsa-2572
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
mozilla.org / security/announce/2012/mfsa2012-86.html
Vendor Advisory
ubuntu.com / usn/USN-1611-1
Third Party Advisory