CVE-2026-3787

7.0 HIGH
Published: March 08, 2026 Modified: March 10, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://vuldb.com/?ctiid.349754
Source: cna@vuldb.com
Permissions Required VDB Entry
https://vuldb.com/?id.349754
Source: cna@vuldb.com
Third Party Advisory VDB Entry
https://vuldb.com/?submit.767257
Source: cna@vuldb.com
Third Party Advisory VDB Entry

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.0 / 10.0
EPSS (Exploit Probability)
0.0%
0th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

microsoft uvnc