Low severity · published Feb 11, 2026
CVE-2026-0228
PAN-OS: Improper Validation of Terminal Server Agent Certificate
1.3
CVSS
0.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
PAN-OS · Palo Alto Networks
11.2.0 before 11.2.8; 11.1.0 before 11.1.11; 10.2.0 before 10.2.17 · source: vendor
PA
Prisma Access · Palo Alto Networks
10.2.0 before 10.2.10-h28 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-0228
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-0228
security.paloaltonetworks.com
https://security.paloaltonetworks.com/CVE-2026-0228
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