CVE-2026-12374: Cato Networks SDP Client

Medium severity, CVSS 6.4. EPSS: 0.1% chance of exploitation in the next 30 days.

Improper certificate validation and a time-of-check time-of-use (TOCTOU) race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed certificate that bypasses the XPC caller verification and a symlink swap during package installation.

Affected products

• Cato Networks SDP Client: from 5.12.0, before 5.13.1 (fixed in 5.13.1)

Published 2026-07-01. Last modified 2026-07-02.