CVE-2025-3029

HIGH
2025-04-01 [email protected]
7.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Patch Released
Apr 05, 2026 - 20:30 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 18:34 vuln.today
CVE Published
Apr 01, 2025 - 13:15 nvd
HIGH 7.3

Tags

Authentication Bypass Mozilla Firefox Thunderbird Redhat Suse

Description

A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9.

Analysis

A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified under CWE-290. A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. This vulnerability affects Firefox < 137, Firefox ESR < 128.9, Thunderbird < 137, and Thunderbird < 128.9. Affected products include: Mozilla Firefox, Mozilla Thunderbird.

Affected Products

Mozilla Firefox, Mozilla Thunderbird.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Priority Score

37
Low Medium High Critical
KEV: 0
EPSS: +0.7
CVSS: +36
POC: 0

Vendor Status

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CVE-2025-3029 vulnerability details – vuln.today
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