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CVE-2025-1933

Public on 2025-03-04
Modified on 2025-03-06
Description

On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thunderbird < 136, and Thunderbird < 128.8.

Severity
Important
See what this means
CVSS v3 Base Score
7.6
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Firefox Extra firefox 2025-03-26 19:21 ALAS2FIREFOX-2025-036
Amazon Linux 2 - Core thunderbird 2025-03-26 19:24 ALAS2-2025-2807

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H