{"id":"CVE-2026-0228","aliases":["EUVD-2026-5939","GHSA-j8fr-767f-7h52"],"status":"published","title":"PAN-OS: Improper Validation of Terminal Server Agent Certificate","description":"An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to do so.","severity":{"version":"4.0","score":1.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.002,"percentile":0.10027,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2026-02-11T17:55:44Z","modified":"2026-06-17T10:10:33Z","products":[{"vendor":"palo alto networks","product":"cloud ngfw"},{"vendor":"palo alto networks","product":"pan-os"},{"vendor":"palo alto networks","product":"prisma access"}],"references":[{"url":"https://security.paloaltonetworks.com/CVE-2026-0228","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0228"},{"url":"https://github.com/advisories/GHSA-j8fr-767f-7h52"}],"sources":{"cve":[{"id":"CVE-2026-0228","title":"PAN-OS: Improper Validation of Terminal Server Agent Certificate","description":"An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to do so.","status":"published","published":"2026-02-11T17:55:44.109Z","modified":"2026-02-11T19:04:15.415Z","cvss":[{"version":"4.0","score":1.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber","level":"low","assessor":"cna"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:20:13.587351Z"}],"euvd":[{"id":"EUVD-2026-5939","description":"An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to do so.","status":"published","published":"2026-02-11T17:55:44Z","modified":"2026-02-11T19:04:15Z","cvss":[{"version":"4.0","score":1.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber","level":"low"}],"updated_at":"2026-11-02T19:48:40.797648Z"}],"ghsa":[{"id":"GHSA-j8fr-767f-7h52","title":"An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal...","description":"An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to do so.","status":"published","published":"2026-02-11T18:31:31Z","modified":"2026-02-11T18:31:37Z","cvss":[{"version":"4.0","score":1.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/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:N/R:U/V:D/RE:M/U:Amber","level":"low"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T15:06:09.03825Z"}],"nvd":[{"id":"CVE-2026-0228","description":"An improper certificate validation vulnerability in PAN-OS allows users to connect Terminal Server Agents on Windows to PAN-OS using expired certificates even if the PAN-OS configuration would not normally permit them to do so.","status":"published","published":"2026-02-11T18:16:07.72Z","modified":"2026-06-17T10:10:33.943Z","cvss":[{"version":"4.0","score":1.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/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:N/R:U/V:D/RE:M/U:Amber","level":"low","assessor":"secondary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:12:05.908608Z"}]}}