VulnerabilityModified
CVE-2026-34352
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.
CRITICAL 9.8EPSS 0.25%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- tigervnc/tigervnc
- Source
- cve@mitre.org
References
- https://github.com/TigerVNC/tigervnc/commit/0b5cab169d847789efa54459a87659d3fd484393Patch
- https://github.com/TigerVNC/tigervnc/issues/2079
- https://groups.google.com/g/tigervnc-announce/c/anHL9WLshLIMailing List, Patch
- https://sourceforge.net/projects/tigervnc/files/stable/1.16.2Release Notes
- https://www.openwall.com/lists/oss-security/2026/03/26/7Mailing List, Third Party Advisory
- https://github.com/TigerVNC/tigervnc/issues/2079
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.