CVE-2024-3393
HIGH CISA KEVCVSS v3
7.5
HIGH
EPSS Score
—
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
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.
CISA Known Exploited Vulnerability
- Date Added
- 12/30/2024
- Patch Due Date
- 1/20/2025
- Required Action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 12/27/2024
- Last Modified
- 11/4/2025
Frequently Asked Questions
What is CVE-2024-3393?
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.
Is CVE-2024-3393 actively exploited?
Yes. CVE-2024-3393 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 1/20/2025.
What is the CVSS score for CVE-2024-3393?
CVE-2024-3393 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.1.
Is CVE-2024-3393 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.