CVEvulnerability

CVE-2024-3393

8.7 HIGH Known exploited Published 2024-12-27 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability — Palo Alto Networks PAN-OS

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.

Added to KEV: 2024-12-30
Remediation due: 2025-01-20
Ransomware use: Unknown
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes: https://security.paloaltonetworks.com/CVE-2024-3393 ; https://nvd.nist.gov/vuln/detail/CVE-2024-3393

Status: Analyzed
Published: 2024-12-27
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 4.0 ([email protected]): 8.7 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:C/RE:M/U:Amber
CVSS 3.1 ([email protected]): 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses: CWE-754

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.

Affected configurations

• paloaltonetworks pan-os (>= 11.1.0 <= 11.1.1) • paloaltonetworks pan-os (>= 11.2.0 < 11.2.3) • paloaltonetworks pan-os 10.1.14 • paloaltonetworks pan-os 10.2.8 • paloaltonetworks pan-os 10.2.9 • paloaltonetworks pan-os 10.2.10 • paloaltonetworks pan-os 10.2.11 • paloaltonetworks pan-os 10.2.12 • paloaltonetworks pan-os 10.2.13 • paloaltonetworks pan-os 11.1.2 • paloaltonetworks pan-os 11.1.3 • paloaltonetworks pan-os 11.1.4 • paloaltonetworks prisma access

Weakness · CWE (1)

CWE-754 Improper Check for Unusual or Exceptional Conditions weakness

References