CVE-2025-8044

CRITICAL

Firefox < 141.0 and Thunderbird < 141.0 - Memory Corruption

Title source: llm
STIX 2.1

Description

Memory safety bugs present in Firefox 140 and Thunderbird 140. 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 141 and Thunderbird 141.

References (3)

Core 3

Scores

CVSS v3 9.8
EPSS 0.0043
EPSS Percentile 62.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-119
Status published
Products (4)
mozilla/firefox < 141.0
Mozilla/Firefox 141
mozilla/thunderbird < 141.0
Mozilla/Thunderbird 141
Published Jul 22, 2025
Tracked Since Feb 18, 2026