Unauthenticated PAN-OS DoS Flaw Forces Quick GlobalProtect Patch
TL;DR Summary
Palo Alto Networks patched a critical PAN-OS vulnerability (CVE-2026-0227) that lets unauthenticated attackers trigger a denial-of-service on GlobalProtect gateways/portals. The flaw, rated CVSS 7.7 (HIGH), stems from improper handling of unusual conditions and affects multiple PAN-OS versions (Cloud NGFW is spared). A PoC exists, exploitation is not yet observed, and no workarounds are available. Administrators should upgrade to the latest hotfixes (PAN-OS 12.1.4 or 11.2.10-h2) and verify configurations via Palo Alto’s support portal while monitoring for DoS attempts.
Topics:technology#cve-2026-0227#cyber-security-news#denial-of-service#globalprotect#palo-alto-networks#pan-os
- Palo Alto Networks Firewall Vulnerability Allows Attacker to Trigger DoS Attacks Cyber Security News
- Palo Alto Fixes GlobalProtect DoS Flaw That Can Crash Firewalls Without Login The Hacker News
- Palo Alto Networks warns of DoS bug letting hackers disable firewalls BleepingComputer
- Palo Alto Networks Firewall Flaw Enables Denial-of-Service Attacks Cyber Press
Reading Insights
Total Reads
0
Unique Readers
4
Time Saved
52 min
vs 53 min read
Condensed
99%
10,511 → 78 words
Want the full story? Read the original article
Read on Cyber Security News