CVE-2024-3393

HIGH7.5

CISA KEV

Published 2024-12-27 · Updated 2026-06-17 · Source psirt@paloaltonetworks.com

Summary

CVE-2024-3393 is a high-severity (CVSS 7.5) vulnerability in Palo Alto Networks PAN-OS. CISA added it to the Known Exploited Vulnerabilities catalog on December 30, 2024, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by January 20, 2025. CISA does not currently list it as used in ransomware campaigns. Palo Alto Networks has 16 vulnerabilities in the KEV catalog, 6 of them linked to ransomware.

All 16 known-exploited Palo Alto Networks vulnerabilities →

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-754CWE-754

CISA Known-Exploited Vulnerability

Product: Palo Alto Networks — PAN-OS

Name: Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability

Date added: 2024-12-30 · Due: 2025-01-20

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

References

View on NVD

More exploited Palo Alto Networks vulnerabilities

Most recently added to CISA KEV

CVE-2026-0322
PAN-OS — Palo Alto Networks PAN-OS Code Injection Vulnerability
added 2026-10-14
CVE-2026-0257
RANSOMWARE
PAN-OS — Palo Alto Networks PAN-OS Authentication Bypass Vulnerability
added 2026-05-29
CVE-2026-0300
PAN-OS — Palo Alto Networks PAN-OS Out-of-bounds Write Vulnerability
added 2026-05-06
CVE-2025-0111
PAN-OS — Palo Alto Networks PAN-OS File Read Vulnerability
added 2025-02-20
CVE-2025-0108
PAN-OS — Palo Alto Networks PAN-OS Authentication Bypass Vulnerability
added 2025-02-18
CVE-2024-9474
RANSOMWARE
PAN-OS — Palo Alto Networks PAN-OS Management Interface OS Command Injection Vulnerability
added 2024-11-18

View all →

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