CVE-2026-2340
Publication date 26 May 2026
Last updated 2 June 2026
Ubuntu priority
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| samba | 26.04 LTS resolute |
Fixed 2:4.23.6+dfsg-1ubuntu2.1
|
| 25.10 questing |
Fixed 2:4.22.3+dfsg-4ubuntu2.4
|
|
| 24.04 LTS noble |
Fixed 2:4.19.5+dfsg-4ubuntu9.6
|
|
| 22.04 LTS jammy |
Fixed 2:4.15.13+dfsg-0ubuntu1.12
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
Notes
mdeslaur
Per upstream "The vfs_worm module was added in 4.2 (2015), but was found to be insufficient (see https://bugzilla.samba.org/show_bug.cgi?id=10430). It was largely repaired for Samba 4.20, but this bug remained." Only affects configurations where vfs_worm is enabled, which is not the default.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.5 · Medium
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-8306-1
- Samba vulnerabilities
- 26 May 2026