CVE-2026-107613

Published: Ott 08, 2026 Last Modified: Ott 08, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,9
Source: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

A NULL pointer dereference vulnerability in the Win8ScreenDriver component of GlavSoft TightVNC Server for Windows before 2.8.88 allows an attacker to crash the server, causing a denial of service. When re-initialization of the DXGI Desktop Duplication driver fails in applyNewScreenProperties() (for example after a GPU reset, display hot-plug or session change), m_drvImpl is left NULL and is subsequently dereferenced without a check by executeDetection(), getScreenBuffer(), grabFb(), getScreenPropertiesChanged() and getCursorPosition().

476

NULL Pointer Dereference

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality
Potential Impacts:
Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands Read Memory Modify Memory
Applicable Platforms
Languages: C, C++, Java, C#, Go
Likelihood of Exploit: Medium
View CWE Details
https://sourceforge.net/p/vnc-tight/bugs/1660/
https://sourceforge.net/p/vnc-tight/bugs/1660/
https://www.tightvnc.com/whatsnew.php
https://www.tightvnc.com/whatsnew.php