Name: CVE-2026-0228: Improper Certificate Validation
Creator: Rapid7
Published: 2026-02-11T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-0228, CVSS 1.3, EPSS 0.00205

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.

CVSS Details

CVSS 4.0 Base Score: 1.3 (LOW)
CVSS 4.0 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)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Palo Alto Networks Pan Os	—	Upgrade Palo Alto Networks PAN-OS to the latest version	Feb 12, 2026	Feb 11, 2026

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CVSS Details

Covered by Rapid7

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