CVE-2025-8043

CRITICAL

Firefox < 141.0 - URL Truncation Misrepresentation

Title source: llm
STIX 2.1

Description

Focus incorrectly truncated URLs towards the beginning instead of around the origin. This vulnerability was fixed in Firefox 141.

References (3)

Core 3

Scores

CVSS v3 9.8
EPSS 0.0035
EPSS Percentile 26.8%
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-451
Status published
Products (3)
mozilla/firefox < 141.0
Mozilla/Firefox 141
mozilla/thunderbird < 141.0
Published Jul 22, 2025
Tracked Since Feb 18, 2026