CVEvulnerability

CVE-2025-6436

8.1 HIGH Published 2025-06-24 Modified 2026-09-30 Official page ↗
Status
Modified
Published
2025-06-24
Last modified
2026-09-30
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-119

Description

Memory safety bugs present in Firefox 139 and Thunderbird 139. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 140 and Thunderbird 140.

Affected configurations

• mozilla firefox (< 140.0) • mozilla thunderbird (< 140.0)

Related

Weakness · CWE (1)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References