7.3
CWE
290
EPSS
0.041%
Advisory Published
CVE Published
Updated

CVE-2025-3029

First published: Tue Apr 01 2025(Updated: )

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

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Thunderbird<137
137
Firefox<137
137
Firefox ESR<128.9
128.9
Thunderbird<128.9
128.9
Firefox<128.9.0
Firefox<137.0
Thunderbird<128.9.0
Thunderbird>=129.0<137.0

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2025-3029?

    CVE-2025-3029 has been classified as a high severity vulnerability due to the risk of spoofing attacks.

  • How can I fix CVE-2025-3029?

    To fix CVE-2025-3029, update your Mozilla Thunderbird or Firefox to the latest version beyond the vulnerable releases.

  • What versions of software are affected by CVE-2025-3029?

    CVE-2025-3029 affects Thunderbird versions prior to 137, Thunderbird ESR versions prior to 128.9, Firefox versions prior to 137, and Firefox ESR versions prior to 128.9.

  • What type of attack does CVE-2025-3029 facilitate?

    CVE-2025-3029 facilitates potential spoofing attacks by allowing crafted URLs to hide the true origin of a page.

  • Who is the vendor for CVE-2025-3029?

    The vendor for CVE-2025-3029 is Mozilla, which produces both Thunderbird and Firefox.

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