CVE-2015-4488

high

Published 2015-08-16 · 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

7.5

Description

Use-after-free vulnerability in the StyleAnimationValue class in Mozilla Firefox before 40.0, Firefox ESR 38.x before 38.2, and Firefox OS before 2.2 allows remote attackers to have an unspecified impact by leveraging a StyleAnimationValue::operator self assignment.

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.

OS impact

OS	Version	Status
ubuntu	12.04	affected
ubuntu	14.04	affected
ubuntu	15.04	affected
suse	13.1	affected
suse	13.2	affected

Application impact

Vendor	Product	Versions
mozilla	firefox	`{"endIncluding":"39.0.3"}`
mozilla	firefox	`38.0`
mozilla	firefox	`38.0.1`
mozilla	firefox	`38.0.5`
mozilla	firefox	`38.1.0`

References

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

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