CVE-2025-1933

CVE-2025-1933

High · published March 4, 2025

CVSS v3.1
7.6
EPSS
0%
Percentile
23.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00319 · 23.6th percentile
Published
2025-03-04T19:15Z
Affected products (5)
ProductVersionsFixed in
mozilla/firefox< 115.21.0115.21.0
mozilla/firefox< 136.0136.0
mozilla/firefox≥ 116.0, < 128.8.0128.8.0
mozilla/thunderbird< 128.8128.8
mozilla/thunderbird≥ 129.0, < 136.0136.0
References (7)
https://bugzilla.mozilla.org/show_bug.cgi?id=1946004 · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-14/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-15/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-16/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-17/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2025-18/ · [email protected]https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 04 MAR 13:31Z
    JIT corruption of WASM i32 return values on 64-bit CPUs
    cvelistv5