CVE-2014-1551

critical

Published 2014-07-23 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

10.0

Description

Use-after-free vulnerability in the FontTableRec destructor in Mozilla Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7 on Windows allows remote attackers to execute arbitrary code via crafted use of fonts in MathML content, leading to improper handling of a DirectWrite font-face object.

Predictions

Exploit likelihood

20%

Patch ETA

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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	`{"endIncluding":"30.0"}`
mozilla	firefox	`24.0`
mozilla	firefox	`24.0.1`
mozilla	firefox	`24.0.2`
mozilla	firefox	`24.1.0`
mozilla	firefox	`24.1.1`
mozilla	firefox_esr	`24.2`
mozilla	firefox_esr	`24.3`
mozilla	firefox_esr	`24.4`
mozilla	firefox_esr	`24.5`
mozilla	firefox_esr	`24.6`
mozilla	thunderbird	`{"endIncluding":"24.6"}`
mozilla	thunderbird	`24.0`
mozilla	thunderbird	`24.0.1`
mozilla	thunderbird	`24.1`
mozilla	thunderbird	`24.1.1`
mozilla	thunderbird	`24.2`
mozilla	thunderbird	`24.3`
mozilla	thunderbird	`24.4`
mozilla	thunderbird	`24.5`

References

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

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