Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability
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.
What happened
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.
CISA lists it as exploited, added 30 Dec 2024.
Does it affect you
Names Palo Alto Networks PAN-OS. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Follow the vendor advisory for the fixed release and any interim mitigation.
security.paloaltonetworks.com - Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
cisa.gov
CISA’s notes for this entry:
Affected, as published to NVD
- panos
- Palo Alto Networks PAN-OS: exactly 10.1.14
The record
- NVD status
- Analyzed
- Published
- 27 Dec 2024, last modified 17 Jun 2026 (NVD)
- Severity
- CVSS 3.1 base score 7.5, High — computed here from the vector; NVD states 7.5.
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness
- CWE-754 Improper Check for Unusual or Exceptional Conditions (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 30 Dec 2024; federal remediation due 20 Jan 2025. CISA entry
- Exploit probability
- EPSS 29.1%, 98th percentile — FIRST, scored 23 Oct 2026. FIRST EPSS
- Vendor
- Palo Alto Networks · PAN-OS (CISA)
References on the NVD record
- security.paloaltonetworks.com/CVE-2024-3393Vendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-3393US Government Resource
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.