Vulnerability in Palo Alto Networks Cloud Ngfw
CVE-2026-0228
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.
Vulnerability class: Improper Certificate Validation
EPSS: 0.002 (8.6th percentile) — read the EPSS interpretation.
Affected products
- Palo Alto Networks Cloud Ngfw — versions All
- Palo Alto Networks Pan-os — versions 12.1.0, 11.2.0, 11.1.0
- Palo Alto Networks Prisma Access — versions 10.2.0
Weakness classification (CWE)
References
- psirt@paloaltonetworks.com (vendor-advisory)