CVE-2025-4092

MEDIUM

Firefox < 138.0 and Thunderbird < 138.0 - Memory Corruption

Title source: llm
STIX 2.1

Description

Memory safety bugs present in Firefox 137 and Thunderbird 137. 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 138 and Thunderbird 138.

References (3)

Core 3

Scores

CVSS v3 6.5
EPSS 0.0028
EPSS Percentile 51.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-119
Status published
Products (4)
mozilla/firefox < 138.0
Mozilla/Firefox 138
mozilla/thunderbird < 138.0
Mozilla/Thunderbird 138
Published Apr 29, 2025
Tracked Since Feb 18, 2026