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CVE PROGRAM SOURCE RECORD7.3 High

CVE-2026-3787

UltraVNC Windows Service cryptbase.dll uncontrolled search path

Description

A weakness has been identified in UltraVNC 1.6.4.0 on Windows. This affects an unknown function in the library cryptbase.dll of the component Windows Service. This manipulation causes uncontrolled search path. The attack requires local access. A high degree of complexity is needed for the attack. The exploitability is reported as difficult. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n/a UltraVNC

  • 1.6.4.0affected

References