CVE-2012-5843

critical
Published 2012-11-21 · Modified 2026-04-29
CVSS v3
CVSS v2
9.3
VIR risk
9.3

Description

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=798678

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=797163

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=795281

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=793253

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=791601

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=789075

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=788822

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=787089

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=784404

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=781859

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=780778

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=774953

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=765409

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugzilla.mozilla.org/show_bug.cgi?id=760887

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://www.mozilla.org/security/announce/2012/mfsa2012-91.html

OS impact

OSVersionStatusFixed in
ubuntu ubuntu10.04affected
ubuntu ubuntu11.10affected
ubuntu ubuntu12.04affected
ubuntu ubuntu12.10affected
suse suse11.4affected
suse suse12.1affected
suse suse12.2affected
suse suse10affected
suse suse11affected

Application impact

VendorProductVersionsFixed
mozilla mozillafirefox{"endExcluding":"10.0.11"}10.0.11
mozilla mozillaseamonkey{"endExcluding":"2.14"}2.14
mozilla mozillathunderbird{"endExcluding":"17.0"}17.0
mozilla mozillathunderbird_esr{"endExcluding":"10.0.11"}10.0.11

References

Verify integrity in audit chain (admin only). AS-IS.