CVE-2025-9185

HIGH

Firefox < 115.27.0, 115.27-115.*, < 128.14, 128.14-128.*, < 140.2, 140.2-140.*, >=142 - Memory Corruption

Title source: llm
STIX 2.1

Description

Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.

References (10)

Core 10

Scores

CVSS v3 8.1
EPSS 0.0014
EPSS Percentile 34.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-119
Status published
Products (11)
mozilla/firefox < 115.27.0
mozilla/firefox < 142.0
Mozilla/Firefox 115.27 - 115.*
Mozilla/Firefox 128.14 - 128.*
Mozilla/Firefox 140.2 - 140.*
Mozilla/Firefox 142
mozilla/thunderbird < 128.14.0
mozilla/thunderbird < 142.0
Mozilla/Thunderbird 128.14 - 128.*
Mozilla/Thunderbird 140.2 - 140.*
... and 1 more
Published Aug 19, 2025
Tracked Since Feb 18, 2026