CVE-2026-107615

An uncontrolled search path element vulnerability in GlavSoft TightVNC Server for Windows before 2.8.88 allows a local authenticated user to execute arbitrary code with SYSTEM privileges. DynamicLibrary::init() (and ThemeLib) load screenhooks32.dll / screenhooks64.dll with LoadLibrary() using a bare file name and no LOAD_LIBRARY_SEARCH_* flags, so the TightVNC service follows the default DLL search order and loads an attacker-planted DLL from a writable directory earlier in that order (for example, an installation directory with permissive ACLs).

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://sourceforge.net/p/vnc-tight/bugs/1666/
https://www.tightvnc.com/whatsnew.php

Configurations

No configuration.

History

08 Oct 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 14:16

Updated : 2026-10-08 21:10

NVD link : CVE-2026-107615

Mitre link : CVE-2026-107615

CVE.ORG link : CVE-2026-107615

JSON object : View

Products Affected

No product.

CWE

CWE-427

Uncontrolled Search Path Element

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