CVE-2026-0228 PAN-OS: Improper Validation of Terminal Server Agent Certificate
Attackers can bypass certificate validation to connect Terminal Server Agents using expired certificates, undermining security controls in PAN-OS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0228?
CVE-2026-0228 is a low-severity vulnerability in Palo Alto Networks Cloud NGFW, published on 11 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-295
Which versions are affected by CVE-2026-0228?
How do I fix CVE-2026-0228?
No fix has been published for CVE-2026-0228 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-0228 being exploited?
There is no known exploitation of CVE-2026-0228 in the wild and no public exploit code.
Sources
Also known as GHSA-j8fr-767f-7h52.