CVE-2012-3988

critical

Published 2012-10-10 · Modified 2026-04-29

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

9.3

Description

Use-after-free vulnerability in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 might allow user-assisted remote attackers to execute arbitrary code via vectors involving use of mozRequestFullScreen to enter full-screen mode, and use of the history.back method for backwards history navigation.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Red Hat Affected 3 releases

Version	Status	Fixed in
6.3	Affected	—
6.0	Affected	—
5.0	Affected	—

SUSE Affected 2 releases

Version	Status	Fixed in
11	Affected	—
10	Affected	—

Ubuntu Affected 4 releases

Version	Status	Fixed in
12.04	Affected	—
11.10	Affected	—
11.04	Affected	—
10.04	Affected	—

Application impact

Vendor	Product	Versions	Fixed
mozilla	firefox	`{"endExcluding":"10.0.8"}`	`10.0.8`
mozilla	thunderbird_esr	`{"endExcluding":"10.0.8"}`	`10.0.8`
mozilla	thunderbird	`{"endExcluding":"16.0"}`	`16.0`
mozilla	seamonkey	`{"endExcluding":"2.13"}`	`2.13`

References

CWEs

CWE-416

Community-verified mitigations for this CVE will appear above when contributors publish them.

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