CVE-2026-0300

🚨 CVE-2026-0300 - Critical Unauthenticated Remote Code Execution in Palo Alto Networks PAN-OS Buffer Overflow in User-ID™ Authentication Portal Captive Portal — Actively Exploited in the Wild 📋 Overview A critical buffer overflow vulnerability CWE-787 in the User-ID Authentication Portal of PAN-O...

PAN-OS-User-ID-Buffer-Overflow-PoC

🛡️ CVE-2026-0300: PAN-OS User-ID™ Portal RCE Analysis Research Proof-of-Concept: CWE-787 Out-of-bounds Write 📌 Overview CVE-2026-0300 is a high-severity buffer overflow vulnerability identified in the Palo Alto Networks PAN-OS User-ID™ Authentication Portal Captive Portal. This research repository...

CVE-2026-0300-PANOS

CVE-2026-0300-PANOS 🔓 Unauthenticated Remote Code Execution RCE in Palo Alto Networks PAN-OS User-ID Portal 📋 Vulnerability Details...

cve-2026-0300-audit

CVE-2026-0300 Audit Tooling Read-only audit tooling for CVE-2026-0300 — the unauthenticated buffer overflow in the PAN-OS User-ID Authentication Portal formerly known as "Captive Portal" on PA-Series and VM-Series firewalls. This repo accompanies Tailwind Resource Group security advisory...

CVE-2026-0300-POC

🛡️ CVE-2026-0300: PAN-OS User-ID™ Portal RCE Analysis Research Proof-of-Concept: CWE-787 Out-of-bounds Write 📌 Overview CVE-2026-0300 is a high-severity buffer overflow vulnerability identified in the Palo Alto Networks PAN-OS User-ID™ Authentication Portal Captive Portal. This research repository...

CVE-2026-0300

PAN-OS CVE-2026-0300 Non-Destructive Exposure Survey Tool Overview This tool is a non-destructive exposure survey utility for assessing whether a target PAN-OS service may expose network-accessible surfaces related to CVE-2026-0300. The tool is intended for authorized defensive security validatio...

CVE-2026-0279

Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal aka Captive Portal service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthenticated user to store or execute malicious JavaScript payloa...

CVE-2026-0279 PAN-OS: Multiple Cross-Site Scripting (XSS) Vulnerabilities

Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal aka Captive Portal service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthenticated user to store or execute malicious JavaScript payloa...

CVE-2026-0279

Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal aka Captive Portal service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthenticated user to store or execute malicious JavaScript payloa...

CVE-2026-0279 PAN-OS: Multiple Cross-Site Scripting (XSS) Vulnerabilities

Multiple cross site scripting vulnerabilities in the User-ID™ Authentication Portal aka Captive Portal service, GlobalProtect™ gateway/portal features and Clientless VPN of Palo Alto Networks PAN-OS® software enables a malicious unauthenticated user to store or execute malicious JavaScript payloa...

Palo Alto Networks PAN-OS 11.1.x < 11.1.16 / 11.2.x < 11.2.13 / 12.1.x < 12.1.8 Vulnerability

The version of Palo Alto Networks PAN-OS running on the remote host is 11.1.x prior to 11.1.16, 11.2.x prior to 11.2.13, or 12.1.x prior to 12.1.8. It is, therefore, affected by a vulnerability. Multiple cross site scripting vulnerabilities in the User-ID Authentication Portal aka Captive Portal...

Exploit for Out-of-bounds Write in Paloaltonetworks Pan-Os

CVE-2026-0300 — Palo Alto Networks PAN-OS BOF RCE root...

CVE-2026-0300

A buffer overflow vulnerability in the User-ID™ Authentication Portal aka Captive Portal service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets. T...

Siemens RUGGEDCOM APE1808 Devices

SUMMARY A buffer overflow vulnerability in the User-ID™ Authentication Portal aka Captive Portal service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted...

Exploit for Out-of-bounds Write in Paloaltonetworks Pan-Os

CVE-2026-0300 Overview CVE-2026-0300 is a critical buffer...

PAN-OS RCE Exploit Under Active Use Enabling Root Access and Espionage

Palo Alto Networks has disclosed that threat actors may have attempted to unsuccessfully exploit a recently disclosed critical security flaw as early as April 9, 2026. The vulnerability in question is CVE-2026-0300 CVSS score: 9.3/8.7, a buffer overflow vulnerability in the User-ID Authentication...

Exploit for CVE-2026-0300

PAN-OS CVE-2026-0300 Non-Destructive Exposure Survey Tool...

CVE-2026-0300

A buffer overflow vulnerability in the User-ID™ Authentication Portal aka Captive Portal service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets. T...

CVE-2026-0300 PAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID™ Authentication Portal

A buffer overflow vulnerability in the User-ID™ Authentication Portal aka Captive Portal service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets. T...

CVE-2026-0300

A buffer overflow vulnerability in the User-ID™ Authentication Portal aka Captive Portal service of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to execute arbitrary code with root privileges on the PA-Series and VM-Series firewalls by sending specially crafted packets. T...