Vulnerability in Sparklabs Viscosity
CVE-2025-4412
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.
Published · last modified .
EPSS exploit prediction
EPSS: 0.002 (3.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Sparklabs Viscosity — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cert.pl/en/posts/2025/05/tcc-bypass/ (third-party-advisory)
- www.sparklabs.com/viscosity/ (product)
Frequently asked questions
- What is CVE-2025-4412?
- CVE-2025-4412 is a vulnerability in Sparklabs Viscosity, classified under Incorrect Default Permissions. Published 2025-05-27.
- Is CVE-2025-4412 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.