VULNERABILITY INTELLIGENCE

CVE-2025-1017

CVSS score9.8 CRITICAL
EPSS probability0.58%
CISA KEVNot currently listed
Published2025-02-04
Last modified2026-10-05
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. 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 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

Weakness classification

  • CWE-787: Out-of-bounds Write

Primary references