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01 Record

CVE-2026-0228

PAN-OS: Improper Validation of Terminal Server Agent Certificate

LowPUBLISHEDCNA: palo_alto
CNA base score1.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber

02 Description

PAN-OS: Improper Validation of Terminal Server Agent Certificate

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.20% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 10.2% of scored records. A rank, not a probability.
NVD base score
1.3 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber
NVD analysis status
Deferred. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-02-11 17:55Z8 MO AGO
Last updated
2026-02-11 19:04Z8 MO AGO
Reserved
2025-11-03
Assigning CNA
palo_alto
Record state
PUBLISHED
Severity
Low (CVSS 1.3)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
Weaknesses
  • CWE-295Improper Certificate ValidationBase
Data version
5.2
Document digest
635c23f4cc037347dea959c88bf5da6f510fb95b5fc9b08aab61c6c9db18be88

05 Affected products

VendorProductVersionsPlatforms
Palo Alto NetworksCloud NGFWNot specified—
Palo Alto NetworksPAN-OS11.2.0 to < 11.2.8, 11.1.0 to < 11.1.11, 10.2.0 to < 10.2.17—
Palo Alto NetworksPrisma Access10.2.0 to < 10.2.10-h28PAN-OS

06 References

07 Remediation

VERSION MINOR VERSION SUGGESTED SOLUTION Cloud NGFW No action needed. PAN-OS 12.1 No action needed. PAN-OS 11.2 11.2.0 through 11.2.7 Upgrade to 11.2.8 or later. PAN-OS 11.1 11.1.0 through 11.1.10 Upgrade to 11.1.11 or later. PAN-OS 10.2 10.2.0 through 10.2.16 Upgrade to 10.2.17 or later. All older Upgrade to a supported fixed version. unsupported PAN-OS versions Prisma Access 11.2 on PAN-OS 11.2.0 through 11.2.7 Upgrade to 11.2.7-h10 or later. Prisma Access 10.2 on PAN-OS 10.2.0 through 10.2.10 Upgrade to 10.2.10-h28 or later.