CVEvulnerability
CVE-2025-1933
7.6 HIGH
Official page ↗
- Status
- Modified
- Published
- 2025-03-04
- Last modified
- 2026-10-05
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.6 HIGH — CVSS: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.
Affected configurations
• mozilla firefox (< 115.21.0)
• mozilla firefox (< 136.0)
• mozilla firefox (>= 116.0 < 128.8.0)
• mozilla thunderbird (< 128.8)
• mozilla thunderbird (>= 129.0 < 136.0)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1946004 Issue Tracking
- https://www.mozilla.org/security/advisories/mfsa2025-14/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-15/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-16/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-17/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-18/ Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html lists.debian.org