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Palo Alto Networks Firewall Vulnerability Causes Reboot Loop Risk

Palo Alto Networks Firewall Vulnerability Causes Reboot Loop Risk

First seen 12 Feb 2026, 13:29 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 16:10 UTC

A critical denial-of-service vulnerability, CVE-2026-0229, has been identified in Palo Alto Networks’ PAN-OS software, affecting the Advanced DNS Security feature. This flaw allows unauthenticated attackers to send malicious packets that can crash firewalls into continuous reboot cycles, impacting enterprise networks. The vulnerability was published on February 11, 2026.

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Timeline

2026-02-11
CVE-2026-0229 published
2026-02-12
Article published detailing the vulnerability

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