CVE-2026-0228

LOW

PAN-OS - Certificate Validation

Title source: llm

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.

References (1)

[Various Sources] https://security.paloaltonetworks.com/CVE-2026-0228

Scores

CVSS v4 1.3

EPSS 0.0001

EPSS Percentile 2.0%

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-295

Status published

Products (6)

Palo Alto Networks/Cloud NGFW All

Palo Alto Networks/PAN-OS 10.2.0 - 10.2.17

Palo Alto Networks/PAN-OS 11.1.0 - 11.1.11

Palo Alto Networks/PAN-OS 11.2.0 - 11.2.8

Palo Alto Networks/PAN-OS 12.1.0 - 11.2.8

Palo Alto Networks/Prisma Access 10.2.0 - 10.2.10-h28

Published Feb 11, 2026

Tracked Since Feb 18, 2026