Gbhackers

Palo Alto Networks Firewall Vulnerability Allows Denial of Service Attacks

First seen 15 Jan 2026, 18:00 UTC • Cybersecuritynews

•29.9

Article Content

Include sub-articles 1 / 1

Browse articles

ThreatCluster

Palo Alto Networks has addressed a critical denial-of-service vulnerability in its PAN-OS firewall software, identified as CVE-2026-0227. This flaw enables unauthenticated attackers to disrupt GlobalProtect gateways and portals, with a CVSS v4.0 base score of 7.7, due to improper checks that lead firewalls into maintenance mode after repeated exploitation attempts.

How this analysis works

Attack Flow

Continue Reading

Resurgence of Exploitation Attempts on GlobalProtect and CitrixBleed Vulnerabilities GreyNoise Report Reveals Early Warning Signals for Edge Device Vulnerabilities Qilin Ransomware Gang Exploits Critical Palo Alto VPN Vulnerability Critical RCE Vulnerability in BeyondTrust Software Requires Immediate Patching Multiple Vulnerabilities in Palo Alto Networks GlobalProtect App Exposed Palo Alto Networks Addresses GlobalProtect DoS Vulnerability

Palo Alto Networks Firewall Vulnerability Allows Denial of Service Attacks

Article Content

More articles in this cluster

Attack Flow

Defensive Countermeasures

Extracted Entities

Continue Reading