vulnerability
Ubuntu: USN-7663-1 (CVE-2025-5266): Thunderbird vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:P/I:N/A:N) | May 27, 2025 | Jun 26, 2025 | Sep 24, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
May 27, 2025
Added
Jun 26, 2025
Modified
Sep 24, 2025
Description
Script elements loading cross-origin resources generated load and error events which leaked information enabling XS-Leaks attacks. This vulnerability affects Firefox < 139, Firefox ESR < 128.11, Thunderbird < 139, and Thunderbird < 128.11.
Solution
ubuntu-upgrade-thunderbird
References
- CVE-2025-5266
- https://attackerkb.com/topics/CVE-2025-5266
- CWE-200
- UBUNTU-USN-7663-1
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1965628
- URL-https://ubuntu.com/security/notices/USN-7663-1
- URL-https://www.cve.org/CVERecord?id=CVE-2025-5266
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2025-42/#CVE-2025-5266
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2025-44/#CVE-2025-5266
- URL-https://www.mozilla.org/security/advisories/mfsa2025-42/
- URL-https://www.mozilla.org/security/advisories/mfsa2025-44/
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