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.
Exploitability
AV:LAC:LPR:NUI:NScope
S:CImpact
C:HI:LA:L8.5/CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:LConfiguration