CVE-2025-3029

high

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 was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.

References

https://www.mozilla.org/security/advisories/mfsa2025-24/

https://www.mozilla.org/security/advisories/mfsa2025-23/

https://www.mozilla.org/security/advisories/mfsa2025-22/

https://www.mozilla.org/security/advisories/mfsa2025-20/

https://lists.debian.org/debian-lts-announce/2025/04/msg00005.html

https://bugzilla.mozilla.org/show_bug.cgi?id=1952213

Details

Source: Mitre, NVD

Published: 2025-04-01

Updated: 2026-04-13

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 7.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L