CVE-2026-12374

FAUCET Score

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.

First published: Jul 1, 2026Last modified: Jul 1, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
Cato Networks	SDP Client	>= 5.12.0, < 5.13.1CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 4.0

6.4MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Attack Requirements

PRESENT

Privileges Required

LOW

User Interaction

NONE

VS Confidentiality

HIGH

VS Integrity

HIGH

VS Availability

HIGH

SS Confidentiality

NONE

SS Integrity

NONE

SS Availability

NONE

Exploit Maturity

PROOF_OF_CONCEPT

CvssVersion

4.0

Exploit Intelligence

EPSS Score

0.06%

Probability of exploitation in next 30 days

EPSS Percentile

0.0%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0006 is in the 0th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.catonetworks.com / hc/en-us/articles/37284626576413-Security-Vulnerability-CVE-2026-12374-that-Impacts-macOS-Client-Versions-Lower-than-5-13-1