CVE-2026-107611

GlavSoft TightVNC Viewer for Windows before version 2.8.88 is vulnerable to an out-of-bounds read in its ZRLE decoder . The issue occurs because the readPaletteRleTile() and readPackedPaletteTile() functions fail to validate attacker-supplied indices against the declared palette size. A malicious...

EUVD-2026-94975

An out-of-bounds read vulnerability in the ZRLE decoder of GlavSoft TightVNC Viewer for Windows before 2.8.88 allows a malicious or compromised VNC server to read heap memory beyond the palette allocation and crash the viewer by sending ZRLE-encoded tiles whose palette indices exceed the declared...