CVE-2025-26696
Publication date 10 March 2025
Last updated 16 April 2026
Ubuntu priority
Description
Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| thunderbird | ||
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Fixed 1:128.12.0+build1-0ubuntu0.22.04.1
|
|
| 20.04 LTS focal | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.0 · High
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | Low |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L |
References
Related Ubuntu Security Notices (USN)
- USN-7663-1
- Thunderbird vulnerabilities
- 22 July 2025