Weakness
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.
Affected products
- tigervnc tigervnc
References
- https://github.com/TigerVNC/tigervnc/commit/0b5cab169d847789efa54459a87659d3fd484393
- https://github.com/TigerVNC/tigervnc/issues/2079
- https://groups.google.com/g/tigervnc-announce/c/anHL9WLshLI
- https://sourceforge.net/projects/tigervnc/files/stable/1.16.2
- https://www.openwall.com/lists/oss-security/2026/03/26/7
- https://github.com/TigerVNC/tigervnc/issues/2079
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