"A denial-of-service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall," the company said in a Friday advisory.
"Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode," highlighting the seriousness of the flaw affecting firewalls with DNS Security logging.
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