CVE-2025-3029

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 137 Firefox ESR versions prior to 128.9 Thunderbird versions prior to 137 Thunderbird ESR versions prior to 128.9

Description A crafted URL containing specific Unicode characters could hide the true origin of the page, resulting in a potential spoofing attack.

Recommendations For Firefox versions prior to 137, update to version 137 or later. For Firefox ESR versions prior to 128.9, update to version 128.9 or later. For Thunderbird versions prior to 137, update to version 137 or later. For Thunderbird ESR versions prior to 128.9, update to version 128.9 or later.