CVE-2025-8043

CRITICAL EPSS 28.6%
Published Jul 22, 202511mo ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
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Published Jul 22, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago

Description

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

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
28.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-451

Affected Products 2

VendorProductVersionRange
mozillafirefox* <141.0
mozillathunderbird* <141.0

References 2

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=1970209
    ExploitIssue Tracking
  • mozilla.org https://www.mozilla.org/security/advisories/mfsa2025-56/
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.