Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
Vulnerability Details :

CVE-2026-12374

Summary
Assigner-Cato
Assigner Org ID-2505284f-8ffb-486c-bf60-e19c1097a90b
Published At-01 Jul, 2026 | 14:07
Updated At-01 Jul, 2026 | 15:07
Rejected At-
Credits

Improper XPC caller certificate validation and TOCTOU race condition in macOS PrivilegedHelperTool

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Cato
Assigner Org ID:2505284f-8ffb-486c-bf60-e19c1097a90b
Published At:01 Jul, 2026 | 14:07
Updated At:01 Jul, 2026 | 15:07
Rejected At:
▼CVE Numbering Authority (CNA)
Improper XPC caller certificate validation and TOCTOU race condition in macOS PrivilegedHelperTool

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
Vendor
Cato Networks
Product
SDP Client
Modules
  • PrivilegedHelperTool
Platforms
  • MacOS
Default Status
unaffected
Versions
Affected
  • From 5.12.0 before 5.13.1 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-295CWE-295 Improper certificate validation
CWECWE-367CWE-367 Time-of-check time-of-use (TOCTOU) race condition
Type: CWE
CWE ID: CWE-295
Description: CWE-295 Improper certificate validation
Type: CWE
CWE ID: CWE-367
Description: CWE-367 Time-of-check time-of-use (TOCTOU) race condition
Metrics
VersionBase scoreBase severityVector
4.06.4MEDIUM
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/AU:Y/R:U/V:C/RE:L/U:Amber
Version: 4.0
Base score: 6.4
Base severity: MEDIUM
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
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-233CAPEC-233 Privilege Escalation
CAPEC ID: CAPEC-233
Description: CAPEC-233 Privilege Escalation
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://support.catonetworks.com/hc/en-us/articles/37284626576413-Security-Vulnerability-CVE-2026-12374-that-Impacts-macOS-Client-Versions-Lower-than-5-13-1
N/A
Hyperlink: https://support.catonetworks.com/hc/en-us/articles/37284626576413-Security-Vulnerability-CVE-2026-12374-that-Impacts-macOS-Client-Versions-Lower-than-5-13-1
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:2505284f-8ffb-486c-bf60-e19c1097a90b
Published At:01 Jul, 2026 | 15:16
Updated At:01 Jul, 2026 | 16:16

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.06.4MEDIUM
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
N/A
Type: Secondary
Version: 4.0
Base score: 6.4
Base severity: MEDIUM
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/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
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-295Secondary2505284f-8ffb-486c-bf60-e19c1097a90b
CWE-367Secondary2505284f-8ffb-486c-bf60-e19c1097a90b
CWE ID: CWE-295
Type: Secondary
Source: 2505284f-8ffb-486c-bf60-e19c1097a90b
CWE ID: CWE-367
Type: Secondary
Source: 2505284f-8ffb-486c-bf60-e19c1097a90b
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://support.catonetworks.com/hc/en-us/articles/37284626576413-Security-Vulnerability-CVE-2026-12374-that-Impacts-macOS-Client-Versions-Lower-than-5-13-12505284f-8ffb-486c-bf60-e19c1097a90b
N/A
Hyperlink: https://support.catonetworks.com/hc/en-us/articles/37284626576413-Security-Vulnerability-CVE-2026-12374-that-Impacts-macOS-Client-Versions-Lower-than-5-13-1
Source: 2505284f-8ffb-486c-bf60-e19c1097a90b
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

0Records found
Details not found