CVE-2026-12374 MEDIUM

CVE-2026-12374: Improper XPC caller certificate validation and TOCTOU race condition in macOS PrivilegedHelperTool

Vendor Cato Networks
Product SDP Client
Weakness CWE-295
Published July 1, 2026
Last update July 1, 2026
View on NVD All CVEs

CVSS base score

6.4/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

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/AU:Y/R:U/V:C/RE:L/U:Amber

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 1, 2026 CVE published
July 1, 2026 Record updated