CVE-2024-3393
PAN-OS: Firewall Denial of Service (DoS) in DNS Security Using a Specially Crafted Packet
- State
- Published
- Severity
- 8.7 High
- Published
- Dec 27, 2024
- Updated
- Oct 21, 2025
- Reserved
- Apr 5, 2024
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 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/AU:N/R:U/V:C/RE:M/U:Amber | palo_alto |
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:N/R:U/V:C/RE:M/U:Amber | palo_alto |
Weaknesses
- CWE-754 Improper Check for Unusual or Exceptional Conditions
Affected Products
| Product | Versions |
|---|---|
Cloud NGFWPalo Alto Networks |
|
PAN-OSPalo Alto Networks |
|
PAN-OSPalo Alto Networks |
|
References
- https://security.paloaltonetworks.com/CVE-2024-3393vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-3393government-resource
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