CVE-2026-107611

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...

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...

Linux Distros Unpatched Vulnerability : CVE-2019-15691

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routin...

tigervnc security update

1.9.0-14 - Bump build version Resolves: bz1819877 Resolves: bz1819879 Resolves: bz1819882 Resolves: bz1819886 Resolves: bz1819884 1.9.0-13 - Fix stack buffer overflow in CMsgReader::readSetCursor Resolves: bz1819877 - Fix heap buffer overflow in DecodeManager::decodeRect Resolves: bz1819879 - Fix...