CVE-2025-0238

medium

Description

Assuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Firefox ESR 115.19, Thunderbird 134, and Thunderbird 128.6.

References

https://www.mozilla.org/security/advisories/mfsa2025-05/

https://www.mozilla.org/security/advisories/mfsa2025-04/

https://www.mozilla.org/security/advisories/mfsa2025-03/

https://www.mozilla.org/security/advisories/mfsa2025-02/

https://www.mozilla.org/security/advisories/mfsa2025-01/

https://lists.debian.org/debian-lts-announce/2025/01/msg00004.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1915535

Details

Source: Mitre, NVD

Published: 2025-01-07

Updated: 2026-04-13

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00096