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CVE-2012-1952

27
FAUCET Score

CVE-2012-1952 is a critical vulnerability affecting Mozilla Firefox, Thunderbird, and SeaMonkey versions, stemming from an improper frame variable cast during the processing of mixed row-group and column-group frames. This flaw allows remote attackers to execute arbitrary code via a specially crafted website. With a CVSS score of 9.3, it presents a high severity risk, requiring no authentication and moderate attack complexity to achieve complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, no known exploit code in public databases like Metasploit or ExploitDB, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:beta1:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:beta10:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:beta11:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:beta12:*:*:*:*:*:*

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
3.67%
Probability of exploitation in next 30 days
EPSS Percentile
88.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0367 is in the 49th 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-0:10.0.6-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:10.0.6-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:10.0.6-2.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:10.0.6-1.el6_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:10.0.6-1.el6_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:10.0.6-1.el6_3
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2012-1952Critical

Mozilla: Gecko memory corruption (MFSA 2012-44)

Jul 17, 2012

References

lists.opensuse.org / opensuse-security-announce/2012-07/msg00011.html
lists.opensuse.org / opensuse-security-announce/2012-07/msg00012.html
lists.opensuse.org / opensuse-security-announce/2012-07/msg00013.html
lists.opensuse.org / opensuse-security-announce/2012-07/msg00016.html
osvdb.org / 83999
rhn.redhat.com / errata/RHSA-2012-1088.html
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/49965
secunia.com / advisories/49968
secunia.com / advisories/49972
secunia.com / advisories/49977
secunia.com / advisories/49979
secunia.com / advisories/49992
secunia.com / advisories/49993
secunia.com / advisories/49994
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16942
mozilla.org / security/announce/2012/mfsa2012-44.html
Vendor Advisory
securityfocus.com / bid/54578
securitytracker.com / id
securitytracker.com / id
securitytracker.com / id
ubuntu.com / usn/USN-1509-1
ubuntu.com / usn/USN-1509-2
ubuntu.com / usn/USN-1510-1