CVE-2024-3393 - CVE House
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Status published High CVE-2024-3393

PAN-OS: Firewall Denial of Service (DoS) in DNS Security Using a Specially Crafted Packet

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Palo Alto Networks thanks the CERT-EE team for their extra effort in providing invaluable forensic and analytic assistance.

References

More from Palo Alto Networks

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CVE-2025-4618
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CVE-2025-4617
Prisma Browser: Insufficient Policy Enforcement Vulnerability in Prisma Browser
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CVE-2025-4616
Prisma Browser: Insufficient Validation of Untrusted Input Vulnerability in Prisma Browser
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CVE-2025-4615
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Affected Vendor

Palo Alto Networks

View all reports →

Affected Software

Cloud NGFW, PAN-OS
Vulnerable Versions:
All, 11.2.0, 11.1.0, 10.2.8, 10.1.14, 10.2.0

Timeline

Official Publish: December 27th, 2024
Last Modified: October 21st, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-754

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1499 Endpoint Denial of Service
Impact
T1562 Impair Defenses
Defense Evasion
T1005 Data from Local System
Collection