CVE-2025-14332

HIGH

Firefox and Thunderbird < 146.0 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 146 and Thunderbird 146.

References (3)

Core 3

Scores

CVSS v3 7.3
EPSS 0.0006
EPSS Percentile 17.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (4)
mozilla/firefox < 146.0
Mozilla/Firefox 146
mozilla/thunderbird < 146.0
Mozilla/Thunderbird 146
Published Dec 09, 2025
Tracked Since Feb 18, 2026