CVE-2025-3886: Catonetworks Cato Client

High severity, CVSS 8.1. EPSS: 0.2% chance of exploitation in the next 30 days.

An issue in CatoNetworks CatoClient before v.5.8.0 allows attackers to escalate privileges and achieve a race condition (TOCTOU) via the PrivilegedHelperTool component.

Affected products

• Catonetworks Cato Client: before 5.8.0 (fixed in 5.8.0)

Published 2025-04-27. Last modified 2026-06-17.