vulnerability
Debian: CVE-2025-6429: firefox-esr, thunderbird -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:N/I:C/A:N) | Jun 24, 2025 | Jun 26, 2025 | Aug 15, 2025 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:C/A:N)
Published
Jun 24, 2025
Added
Jun 26, 2025
Modified
Aug 15, 2025
Description
Firefox could have incorrectly parsed a URL and rewritten it to the youtube.com domain when parsing the URL specified in an `embed` tag. This could have bypassed website security checks that restricted which domains users were allowed to embed. This vulnerability affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12.
Solutions
debian-upgrade-firefox-esrdebian-upgrade-thunderbird
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