Skip to content
Fencer Intel
critical 9.3

CVE-2012-0442 json

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18…

published 2012-02-01 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-0474

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.5%
EPSS 4.5% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Patch / fix

  • mozilla firefox 3.6.26, 10.0
  • mozilla seamonkey 2.7
  • mozilla thunderbird 3.1.18, 10.0
  • thunderbird RHEL 6 3.1.18-1.el6_2
  • firefox RHEL 4 3.6.26-2.el4
  • firefox RHEL 5 3.6.26-1.el5_7
  • firefox RHEL 6 3.6.26-1.el6_2
  • xulrunner RHEL 5 1.9.2.26-1.el5_7
  • xulrunner RHEL 6 1.9.2.26-1.el6_2
  • thunderbird RHEL 4 1.5.0.12-46.el4
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 2.0.0.24-28.el5_7

red hat advisories RHSA-2012:0080RHSA-2012:0079RHSA-2012:0085RHSA-2012:0084

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-0442 updated cvss 6.8

Mozilla: memory safety hazards in 10.0/1.9.2.26 (MFSA 2012-01)

  • Red Hat Enterprise Linux (v. 5 server) firefox 3.6.26-1.el5_7, xulrunner 1.9.2.26-1.el5_7 Red Hat Enterprise Linux AS version 4 firefox 3.6.26-2.el4, seamonkey 1.0.9-78.el4, seamonkey-chat 1.0.9-78.el4, seamonkey-mail 1.0.9-78.el4, thunderbird 1.5.0.12-46.el4, seamonkey-js-debugger 1.0.9-78.el4, +1 more Red Hat Enterprise Linux Desktop (v. 5 client) firefox 3.6.26-1.el5_7, xulrunner 1.9.2.26-1.el5_7, thunderbird 2.0.0.24-28.el5_7 Red Hat Enterprise Linux Desktop (v. 6) firefox 3.6.26-1.el6_2, thunderbird 3.1.18-1.el6_2, xulrunner 1.9.2.26-1.el6_2 Red Hat Enterprise Linux Desktop Optional (v. 6) xulrunner 1.9.2.26-1.el6_2 Red Hat Enterprise Linux Desktop version 4 firefox 3.6.26-2.el4, seamonkey 1.0.9-78.el4, seamonkey-chat 1.0.9-78.el4, seamonkey-mail 1.0.9-78.el4, thunderbird 1.5.0.12-46.el4, seamonkey-js-debugger 1.0.9-78.el4, +1 more
    +8 more products
    Red Hat Enterprise Linux ES version 4 firefox 3.6.26-2.el4, seamonkey 1.0.9-78.el4, seamonkey-chat 1.0.9-78.el4, seamonkey-mail 1.0.9-78.el4, thunderbird 1.5.0.12-46.el4, seamonkey-js-debugger 1.0.9-78.el4, +1 more Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 3.6.26-1.el6_2, xulrunner 1.9.2.26-1.el6_2 Red Hat Enterprise Linux Server (v. 6) firefox 3.6.26-1.el6_2, xulrunner 1.9.2.26-1.el6_2 Red Hat Enterprise Linux Server Optional (v. 6) thunderbird 3.1.18-1.el6_2, xulrunner 1.9.2.26-1.el6_2 Red Hat Enterprise Linux Workstation (v. 6) firefox 3.6.26-1.el6_2, thunderbird 3.1.18-1.el6_2, xulrunner 1.9.2.26-1.el6_2 Red Hat Enterprise Linux Workstation Optional (v. 6) xulrunner 1.9.2.26-1.el6_2 Red Hat Enterprise Linux WS version 4 firefox 3.6.26-2.el4, seamonkey 1.0.9-78.el4, seamonkey-chat 1.0.9-78.el4, seamonkey-mail 1.0.9-78.el4, thunderbird 1.5.0.12-46.el4, seamonkey-js-debugger 1.0.9-78.el4, +1 more Red Hat RHEL Desktop Workstation (v. 5 client) xulrunner 1.9.2.26-1.el5_7
    fixed: vendor fix RHSA-2012:0079
  • Red Hat RHEL Optional Productivity Applications (v. 5 server) thunderbird 2.0.0.24-28.el5_7
    fixed: vendor fix RHSA-2012:0085

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.54% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=693399 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.