{"id":"CVE-2026-12374","aliases":["EUVD-2026-41001","GHSA-fmmf-42mh-hr4x"],"status":"published","title":"Improper XPC caller certificate validation and TOCTOU race condition in macOS PrivilegedHelperTool","description":"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":{"version":"4.0","score":6.4,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00073,"percentile":0.00052,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295","CWE-367"],"published":"2026-07-01T14:07:28Z","modified":"2026-10-25T17:10:00Z","products":[{"vendor":"cato networks","product":"sdp client"}],"references":[{"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"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12374"},{"url":"https://github.com/advisories/GHSA-fmmf-42mh-hr4x"}],"sources":{"cve":[{"id":"CVE-2026-12374","title":"Improper XPC caller certificate validation and TOCTOU race condition in macOS PrivilegedHelperTool","description":"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.","status":"published","published":"2026-07-01T14:07:28.896Z","modified":"2026-07-01T15:07:24.153Z","cvss":[{"version":"4.0","score":6.4,"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","level":"medium","assessor":"cna"}],"cwes":["CWE-295","CWE-367"],"updated_at":"2026-11-02T14:19:47.998488Z"}],"euvd":[{"id":"EUVD-2026-41001","description":"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.","status":"published","published":"2026-07-01T14:07:28Z","modified":"2026-07-01T15:07:24Z","cvss":[{"version":"4.0","score":6.4,"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","level":"medium"}],"updated_at":"2026-11-02T18:20:19.829772Z"}],"ghsa":[{"id":"GHSA-fmmf-42mh-hr4x","title":"Improper certificate validation and a time-of-check time-of-use (TOCTOU) race condition in the...","description":"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.","status":"published","published":"2026-07-01T15:35:20Z","modified":"2026-07-01T15:35:27Z","cvss":[{"version":"4.0","score":6.4,"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","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:09:08.409779Z"}],"nvd":[{"id":"CVE-2026-12374","description":"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.","status":"published","published":"2026-07-01T15:16:27.1Z","modified":"2026-10-25T17:10:00.197Z","cvss":[{"version":"4.0","score":6.4,"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","level":"medium","assessor":"secondary"}],"cwes":["CWE-295","CWE-367"],"updated_at":"2026-11-02T14:12:27.199837Z"}]}}