vulnerability
Ubuntu: USN-7991-1 (CVE-2025-5271): Thunderbird vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:L/Au:N/C:P/I:P/A:N) | May 27, 2025 | Jun 26, 2025 | Feb 4, 2026 |
Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
May 27, 2025
Added
Jun 26, 2025
Modified
Feb 4, 2026
Description
Previewing a response in Devtools ignored CSP headers, which could have allowed content injection attacks. This vulnerability affects Firefox < 139 and Thunderbird < 139.
Solution
ubuntu-upgrade-thunderbird
References
- CVE-2025-5271
- https://attackerkb.com/topics/CVE-2025-5271
- CWE-116
- UBUNTU-USN-7991-1
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1920348
- URL-https://www.cve.org/CVERecord?id=CVE-2025-5271
- URL-https://www.mozilla.org/en-US/security/advisories/mfsa2025-42/#CVE-2025-5271
- URL-https://www.mozilla.org/security/advisories/mfsa2025-42/
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