CVE-2026-0228
PAN-OS: Improper Validation of Terminal Server Agent Certificate
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.
- 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
06 References
- security.paloaltonetworks.comhttps://security.paloaltonetworks.com/CVE-2026-0228
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.