CVE-2025-3029

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.

Weakness

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

Affected Software

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/21.html
• https://cwe.mitre.org/data/definitions/22.html
• https://cwe.mitre.org/data/definitions/459.html
• https://cwe.mitre.org/data/definitions/461.html
• https://cwe.mitre.org/data/definitions/473.html
• https://cwe.mitre.org/data/definitions/476.html
• https://cwe.mitre.org/data/definitions/59.html
• https://cwe.mitre.org/data/definitions/60.html
• https://cwe.mitre.org/data/definitions/667.html
• https://cwe.mitre.org/data/definitions/94.html

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1952213
• https://www.mozilla.org/security/advisories/mfsa2025-20/
• https://www.mozilla.org/security/advisories/mfsa2025-22/
• https://www.mozilla.org/security/advisories/mfsa2025-23/
• https://www.mozilla.org/security/advisories/mfsa2025-24/