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Fencer Intel
critical 10.0

CVE-2011-0053 json

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, Thunderbird before 3.1…

published 2011-03-02 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0079

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.8%
EPSS 5.8% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.5.17 and 3.6.x before 3.6.14, Thunderbird before 3.1.8, and SeaMonkey before 2.0.12 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Patch / fix

  • seamonkey RHEL 4 1.0.9-67.el4_8
  • seamonkey-chat RHEL 4 1.0.9-67.el4_8
  • seamonkey-mail RHEL 4 1.0.9-67.el4_8
  • seamonkey-js-debugger RHEL 4 1.0.9-67.el4_8
  • seamonkey-dom-inspector RHEL 4 1.0.9-67.el4_8
  • firefox RHEL 4 3.6.14-4.el4
  • firefox RHEL 5 3.6.14-4.el5_6
  • firefox RHEL 6 3.6.14-4.el6_0

red hat advisories RHSA-2011:0313RHSA-2011:0310RHSA-2011:0312RHSA-2011:0311

  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-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-2011-0053 updated cvss 5.1

Mozilla miscellaneous memory safety hazards (MFSA 2011-01)

  • Red Hat Enterprise Linux 5 thunderbird
    affected: no fix available
  • Red Hat Enterprise Linux (v. 5.6.z server) firefox 3.6.14-4.el5_6, xulrunner 1.9.2.14-4.el5_6 Red Hat Enterprise Linux AS version 4 firefox 3.6.14-4.el4, seamonkey 1.0.9-67.el4_8, thunderbird 1.5.0.12-35.el4, seamonkey-chat 1.0.9-67.el4_8, seamonkey-mail 1.0.9-67.el4_8, seamonkey-js-debugger 1.0.9-67.el4_8, +1 more Red Hat Enterprise Linux Desktop (v. 6) firefox 3.6.14-4.el6_0, thunderbird 3.1.8-4.el6_0, xulrunner 1.9.2.14-3.el6_0 Red Hat Enterprise Linux Desktop Optional (v. 6) xulrunner 1.9.2.14-3.el6_0 Red Hat Enterprise Linux Desktop version 4 firefox 3.6.14-4.el4, seamonkey 1.0.9-67.el4_8, thunderbird 1.5.0.12-35.el4, seamonkey-chat 1.0.9-67.el4_8, seamonkey-mail 1.0.9-67.el4_8, seamonkey-js-debugger 1.0.9-67.el4_8, +1 more Red Hat Enterprise Linux ES version 4 firefox 3.6.14-4.el4, seamonkey 1.0.9-67.el4_8, thunderbird 1.5.0.12-35.el4, seamonkey-chat 1.0.9-67.el4_8, seamonkey-mail 1.0.9-67.el4_8, seamonkey-js-debugger 1.0.9-67.el4_8, +1 more
    +6 more products
    Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 3.6.14-4.el6_0, xulrunner 1.9.2.14-3.el6_0 Red Hat Enterprise Linux Server (v. 6) firefox 3.6.14-4.el6_0, xulrunner 1.9.2.14-3.el6_0 Red Hat Enterprise Linux Server Optional (v. 6) thunderbird 3.1.8-4.el6_0, xulrunner 1.9.2.14-3.el6_0 Red Hat Enterprise Linux Workstation (v. 6) firefox 3.6.14-4.el6_0, thunderbird 3.1.8-4.el6_0, xulrunner 1.9.2.14-3.el6_0 Red Hat Enterprise Linux Workstation Optional (v. 6) xulrunner 1.9.2.14-3.el6_0 Red Hat Enterprise Linux WS version 4 firefox 3.6.14-4.el4, seamonkey 1.0.9-67.el4_8, thunderbird 1.5.0.12-35.el4, seamonkey-chat 1.0.9-67.el4_8, seamonkey-mail 1.0.9-67.el4_8, seamonkey-js-debugger 1.0.9-67.el4_8, +1 more
    fixed: vendor fix RHSA-2011:0310
  • Red Hat RHEL Optional Productivity Applications (v. 5 server) thunderbird 2.0.0.24-14.el5_6
    fixed: vendor fix RHSA-2011:0312

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

5.79% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/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.