PAN-OS: Improper Validation of Terminal Server Agent Certificate (Palo Alto Networks Cloud NGFW)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.20 % · percentile 10 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- palo_alto
- NVD status
- Deferred
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.
Weaknesses (CWE)
- CWE-295 — Improper Certificate Validation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | LOW 1.3 | 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 | palo_alto |
| CVSS 4.0 | LOW 1.3 | 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 · psirt@paloaltonetworks.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-5939
- GCVE · GCVE-0-2026-0228
CERT-FR advisories
- CERTFR-2026-AVI-0160 — Multiples vulnérabilités dans les produits Palo Alto Networks · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Palo Alto Networks · Cloud NGFW | unaffected All |
| Palo Alto Networks · PAN-OS | unaffected 12.1.0 < 11.2.8 ; affected 11.2.0 < 11.2.8 ; affected 11.1.0 < 11.1.11 ; affected 10.2.0 < 10.2.17 |
| Palo Alto Networks · Prisma Access | affected 10.2.0 < 10.2.10-h28 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |