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

Source: https://junglewise.ai/threats/cve-2024-3393-palo-alto-networks-pan-os-malicious-dns-packet-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-12-30. Updated: 2026-05-09  
License: CC BY 4.0 with a link back

CVE-2024-3393 · Severity: critical · CVSS 8.7 · Exploited in the wild · Published 2024-12-30

A Denial of Service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS allows an unauthenticated remote attacker to reboot the firewall by sending malicious DNS packets through the data plane. Repeated exploitation can force the device into maintenance mode, requiring manual intervention.

Technologies: [Palo Alto Networks PAN-OS](https://junglewise.ai/threats/technologies/pan-os). Vendors: [Palo Alto Networks](https://junglewise.ai/threats/vendors/palo-alto-networks).

## Quick answers

**Is CVE-2024-3393 exploited in the wild?** Yes. CVE-2024-3393 is known to be exploited in the wild, first recorded on 30 December 2024. Treat it as urgent.

**How severe is CVE-2024-3393?** Critical severity, with a CVSS score of 8.7, published 30 December 2024.

**Which products and versions are affected?** Palo Alto Networks PAN-OS 10.1.14, 10.2.8 through 10.2.11, 11.2.x before 11.2.3; Palo Alto Networks Prisma Access.

**Is there a fix for CVE-2024-3393?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2024-3393 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2024-3393?** Check whether you run Palo Alto Networks PAN-OS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Palo Alto Networks PAN-OS 10.1.14, 10.2.8 through 10.2.11, 11.2.x before 11.2.3
- Palo Alto Networks Prisma Access

## Timeline

- 2024-12-30: disclosed
- 2024-12-30: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2024-12-30: exploited: Reported as exploited in the wild at time of publication.

## Related threats

- [Palo Alto Networks PAN-OS information disclosure via dataplane interface](https://junglewise.ai/threats/cve-2026-0331-an-information-disclosure-vulnerability-in-palo-alto-networks-pan)
- [Palo Alto Networks PAN-OS buffer overflow denial of service](https://junglewise.ai/threats/cve-2026-0329-a-buffer-overflow-vulnerability-in-palo-alto-networks-pan-os)
- [Palo Alto Networks PAN-OS authentication bypass in GlobalProtect](https://junglewise.ai/threats/cve-2026-0328-authentication-bypass-vulnerabilities-in-the-globalprotect-portal)
- [Palo Alto Networks PAN-OS privilege escalation in GlobalProtect](https://junglewise.ai/threats/cve-2026-0327-a-privilege-escalation-vulnerability-in-the-globalprotect-gateway)
- [Palo Alto Networks PAN-OS buffer overflow in protocol and service processing](https://junglewise.ai/threats/cve-2026-0326-a-buffer-overflow-vulnerability-in-palo-alto-networks-pan-os)