CVE-2024-3393

Palo Alto Networks Cloud NGFW, Palo Alto Networks PAN-OS

Published 27 Dec 2024 · updated 17 Jun 2026 · Analyzed

8.7 High · CVSS 4.0, paloaltonetworks.com

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 30 Dec 2024, with a remediation deadline of 20 Jan 2025 for US federal agencies.

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

Description

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. Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.

References