CVE-2012-1939

critical

Published 2012-06-05 · 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

jsinfer.cpp in Mozilla Firefox ESR 10.x before 10.0.5 and Thunderbird ESR 10.x before 10.0.5 does not properly determine data types, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via crafted JavaScript code.

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.

Application impact

Vendor	Product	Versions
mozilla	firefox	`10.0`
mozilla	firefox	`10.0.1`
mozilla	firefox	`10.0.2`
mozilla	firefox	`10.0.3`
mozilla	firefox	`10.0.4`
mozilla	thunderbird_esr	`10.0`
mozilla	thunderbird_esr	`10.0.1`
mozilla	thunderbird_esr	`10.0.2`
mozilla	thunderbird_esr	`10.0.3`
mozilla	thunderbird_esr	`10.0.4`

References

CWEs

CWE-119

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

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