CVE-2026-3787

HighCVSS 7.0/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-426 CWE-427

Affected software

No affected versions have been published.

Timeline

Published: Mar 8, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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