CVE-2025-4412 MEDIUM

CVE-2025-4412: TCC Bypass via Dylib Loading in Viscosity.app

Vendor Sparklabs
Product Viscosity
Weakness CWE-276
Published May 27, 2025
Last update June 6, 2025

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

On macOS systems, by utilizing a Launch Agent and loading the viscosity_openvpn process from the application bundle, it is possible to load a dynamic library with Viscosity's TCC (Transparency, Consent, and Control) identity. The acquired resource access is limited without entitlements such as access to the camera or microphone. Only user-granted permissions for file resources apply. Access to other resources beyond granted-permissions requires user interaction with a system prompt asking for permission. This issue was fixed in version 1.11.5 of Viscosity.

Key dates

02Disclosure timeline

May 27, 2025 CVE published
June 6, 2025 Record updated