Actively exploited vulnerability

CVE-2024-3393: Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability

Palo Alto Networks PAN-OS contains a vulnerability in parsing and logging malicious DNS packets in the DNS Security feature that, when exploited, allows an unauthenticated attacker to remotely reboot the firewall. Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.

CISA KEV source 30 Dec 2024 added 20 Jan 2025 remediation due

Affected product

Palo Alto Networks ยท PAN-OS

Known ransomware use: Unknown

Required action

Follow the source advisory and validate exposure in your environment.

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Related Yasna coverage

Recent reporting that mentions CVE-2024-3393.