CVE-2026-34352
Publication date 30 March 2026
Last updated 30 March 2026
Ubuntu priority
Description
In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an application crash, because of incorrect permissions.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| tigervnc | 25.10 questing |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
8.5 · High
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | Low |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L |
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-34352
- https://groups.google.com/g/tigervnc-announce/c/anHL9WLshLI
- https://www.openwall.com/lists/oss-security/2026/03/26/7
- https://github.com/TigerVNC/tigervnc/commit/0b5cab169d847789efa54459a87659d3fd484393
- https://sourceforge.net/projects/tigervnc/files/stable/1.16.2