TCC Bypass via Dylib Loading in Viscosity.app
CVE-2025-4412 is fixed in Viscosity on 1 platform by Viscosity 1.11.4.1835 (version 1.11.4.1835), released January 15, 2025. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Viscosity | 1.11.4.1835 | Viscosity 1.11.4.1835 | Jan 15, 2025 |
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