Improper Certificate Validation in Prisma Access and Palo Alto PAN-OS - CVE-2026-0228

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Main Vulnerability Database Vulnerabilities #VU122749

Improper Certificate Validation in Prisma Access and Palo Alto PAN-OS - CVE-2026-0228

Published: February 12, 2026


Vulnerability identifier: #VU122749
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-0228
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper certificate validation. A remote user can connect Terminal Server Agents on Windows to PAN-OS using expired certificates.


Affected software

Prisma Access
Palo Alto PAN-OS

How to mitigate CVE-2026-0228

Install updates from vendor's website.

Prisma Access - addressed in versions 10.2.10-h28, 11.2.7-h10
Palo Alto PAN-OS - addressed in versions 10.2.17, 11.1.11, 11.2.8

External References

Related Security Bulletins