CVE-2026-0228— PAN-OS: Improper Validation of Terminal Server Agent Certificate
Quick assessment
Affected
Palo Alto Networks Cloud NGFW
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Palo Alto Networks PAN-OS是美国Palo Alto Networks公司的一套为其防火墙设备开发的操作系统。 Palo Alto Networks PAN-OS存在安全漏洞，该漏洞源于证书验证不当，可能导致用户使用过期证书连接Windows上的终端服务器代理。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-0228
Vulnerability Information
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Vulnerability Title
PAN-OS: Improper Validation of Terminal Server Agent Certificate
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks PAN-OS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks PAN-OS是美国Palo Alto Networks公司的一套为其防火墙设备开发的操作系统。 Palo Alto Networks PAN-OS存在安全漏洞，该漏洞源于证书验证不当，可能导致用户使用过期证书连接Windows上的终端服务器代理。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Palo Alto Networks | Cloud NGFW | - | - |
|
| Palo Alto Networks | PAN-OS | 11.2.0 ~ 11.2.8 |
cpe:2.3:o:palo_alto_networks:pan-os:11.2.7:h8:*:*:*:*:*:*
|
|
| Palo Alto Networks | Prisma Access | 10.2.0 ~ 10.2.10-h28 | - |
|
II. Public POCs for CVE-2026-0228
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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V. Comments for CVE-2026-0228
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