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Mozilla Firefox Use-After-Free Vulnerability

Mozilla Firefox and Firefox ESR contain a use-after-free vulnerability in Animation timelines that allows for code execution in the content process.Vendor:

Security · HIGH
Source: CISA Known Exploited VulnerabilitiesMay 2, 2026, 4:51 PMSecurityhigh

Full content

Mozilla Firefox and Firefox ESR contain a use-after-free vulnerability in Animation timelines that allows for code execution in the content process.

Vendor: Mozilla

Product: Firefox

Due date: 2024-11-05

Known ransomware use: Known

Why it matters

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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