How severe is CVE-2026-0228?

CVE-2026-0228 has a CVSS 4.0 base score of 1.3, rated low severity.

Is CVE-2026-0228 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-0228?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-0228 have an EU (EUVD) identifier?

Yes. CVE-2026-0228 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5939.

When was CVE-2026-0228 published?

CVE-2026-0228 was published on 2026-02-11 and last updated on 2026-06-17.

CVE-2026-0228

CVE-2026-0228 is a low-severity vulnerability with a CVSS 4.0 base score of 1.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.

Key facts

Severity: Low (CVSS 4.0 base score 1.3)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5939
Weakness: CWE-295
Published: 2026-02-11
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-0228?: CVE-2026-0228 has a CVSS 4.0 base score of 1.3, rated low severity.
Is CVE-2026-0228 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-0228?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-0228 have an EU (EUVD) identifier?: Yes. CVE-2026-0228 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5939.
When was CVE-2026-0228 published?: CVE-2026-0228 was published on 2026-02-11 and last updated on 2026-06-17.

References

https://security.paloaltonetworks.com/CVE-2026-0228

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