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CVE-2026-3787

HIGH

7.0

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.

Details CVE

Score CVSS v3.17.0

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueLOCAL

ComplexiteHIGH

Privileges requisLOW

Interaction utilisateurNONE

Publie3/8/2026

Derniere modification3/10/2026

Sourcenvd

Observations honeypot0

Produits affectes

microsoft:windowsuvnc:ultravnc

Faiblesses (CWE)

CWE-426CWE-427CWE-426

References

https://drive.google.com/file/d/14ixv_1i4D2VrZWyl4RKsvFcN1AMF_qNx/view(cna@vuldb.com)

https://vuldb.com/?ctiid.349754(cna@vuldb.com)

https://vuldb.com/?id.349754(cna@vuldb.com)

https://vuldb.com/?submit.767257(cna@vuldb.com)

Correlations IOC

Aucune correlation enregistree

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