CVE-2026-107615
An uncontrolled search path element vulnerability in GlavSoft TightVNC Server for Windows before…
- Risk score
- 47/100
- CVSS
- 7.8 v3.1
- Exploit chance (30 days)
- 0.1%
- Published
- 8 Oct 2026
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What to know
- What it is
- 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 L…
- Affected
- See advisory
- Fix
- Upgrade the product to 2.8.88 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.8 high
References
Original description
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).
Last activity 8 Oct 2026. Patch Forecast updates every hour.