Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-0227— PAN-OS: Firewall Denial of Service (DoS) in GlobalProtect Gateway and Portal

Quick assessment

Affected
Palo Alto Networks Cloud NGFW
Exploitation
Public or AI PoC available; prioritize validation
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，该漏洞源于未经验证的攻击者可导致防火墙拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 0.75% · P54

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-0227

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
PAN-OS: Firewall Denial of Service (DoS) in GlobalProtect Gateway and Portal
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial of service (DoS) to the firewall. Repeated attempts to trigger this issue results in the firewall entering into maintenance mode.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:Y/R:U/V:D/RE:M/U:Amber
Source: CVE Program / CVE List V5
Vulnerability Type
对因果或异常条件的不恰当检查
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，该漏洞源于未经验证的攻击者可导致防火墙拒绝服务。
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 12.1.2 ~ 12.1.4, 12.1.3-h3 cpe:2.3:o:palo_alto_networks:pan-os:12.1.3:h1:*:*:*:*:*:*
Palo Alto Networks Prisma Access 11.2 ~ 11.2.7-h8 -

II. Public POCs for CVE-2026-0227

# POC Description Source Link Shenlong Link
1 CVE-2026-0227 Advanced Scanner https://github.com/CkAbhijit/CVE-2026-0227-Advanced-Scanner POC Details
2 A lightweight, non-destructive Python script to scan for exposed Palo Alto Networks GlobalProtect portals/gateways and fingerprint potential PAN-OS versions. Designed primarily to help identify systems potentially vulnerable to CVE-2026-0227 (unauthenticated DoS in GlobalProtect, disclosed January 2026). https://github.com/TeeyaR/CVE-2026-0227-Palo-Alto POC Details
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-0227

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-0227 (1)

IV. Related Vulnerabilities

Same product: Cloud NGFW
Same vendor: Palo Alto Networks
Same weakness: CWE-754

V. Comments for CVE-2026-0227

No comments yet

Leave a comment