Cato NetworksCVE-2026-12374

Cato Networks SDP Client: improper certificate validation

Medium6.4CVE-2026-12374 · Published Jul 1, 2026 · updated Jul 2, 2026

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.

Cato Networks advisory

Affected versions

Package	Affected	Fixed in
SDP Client Product	>= 5.12.0, < 5.13.1	5.13.1

Details and references

CVSS 4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:C/RE:L/U:Amber
Severity from: the vendor (its own CVE record or advisory)
Weakness: CWE-295, CWE-367

www.cve.org/CVERecord?id=CVE-2026-12374
nvd.nist.gov/vuln/detail/CVE-2026-12374
support.catonetworks.com/hc/en-us/articles/37284626576413-Security-Vulnerability-CVE-2026-12374-that-Impacts-macOS-Client-Versions-Lower-than-5-13-1

Affected versions

Critical advisories by email