VULNERABILITY INTELLIGENCE

CVE-2025-1933

CVSS score7.6 HIGH
EPSS probability0.32%
CISA KEVNot currently listed
Published2025-03-04
Last modified2026-10-05
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

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 was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references