CVE-2025-1011

High

Description

A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

SeverityHigh
CVSS8.8
Exploit probability—
ProductMozilla Firefox
PublishedFeb 4, 2025
First seenFeb 4, 2025

How to fix

Update
  • mozilla firefox128.7.0, 135.0 or later
  • mozilla thunderbird135.0, 128.7.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 128.7.0, v < 135.0128.7.0, 135.0
mozilla thunderbirdv < 135.0, 128.0.1 ≤ v < 128.7.0135.0, 128.7.0

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