Vulnerability-Lookup

GHSA-FMMF-42MH-HR4X

Vulnerability from github – Published: 2026-07-01 15:35 – Updated: 2026-07-01 15:35

Details

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.

Severity ?

6.4 (Medium)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-12374"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-01T15:16:27Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-fmmf-42mh-hr4x",
  "modified": "2026-07-01T15:35:20Z",
  "published": "2026-07-01T15:35:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12374"
    },
    {
      "type": "WEB",
      "url": "https://support.catonetworks.com/hc/en-us/articles/37284626576413-Security-Vulnerability-CVE-2026-12374-that-Impacts-macOS-Client-Versions-Lower-than-5-13-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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": "CVSS_V4"
    }
  ]
}

CVE-2026-12374 (GCVE-0-2026-12374)

Vulnerability from cvelistv5 – Published: 2026-07-01 14:07 – Updated: 2026-07-01 15:07

Title

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

Summary

Severity ?

6.4 (Medium)


                        
                          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

CWE

CWE-295 - Improper certificate validation
CWE-367 - Time-of-check time-of-use (TOCTOU) race condition

Assigner

Cato

References

URL

Tags

https://support.catonetworks.com/hc/en-us/article…

Impacted products

	Vendor	Product	Version
	Cato Networks	SDP Client	Affected: 5.12.0 , < 5.13.1 (semver)

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JSON

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  "containers": {
    "adp": [
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        "metrics": [
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                "id": "CVE-2026-12374",
                "options": [
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                  },
                  {
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-01T15:07:18.915117Z",
                "version": "2.0.3"
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            }
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-FMMF-42MH-HR4X

CVE-2026-12374 (GCVE-0-2026-12374)

Tags

Sightings

Nomenclature