CVE-2024-3393

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.

Scoring

• CVSS: 7.5 (HIGH, 3.1)
• EPSS exploitation probability: Not yet available
• EPSS percentile: Not yet available

CISA KEV status

• Added to KEV: 2024-12-30
• Remediation due date: 2025-01-20
• Known ransomware campaign use: Unknown

Weakness types (CWE)

• CWE-754
• CWE-754

References

• https://security.paloaltonetworks.com/CVE-2024-3393
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-3393

More from Palo Alto Networks

• CVE-2026-0322 — PAN-OS
• CVE-2026-0257 — PAN-OS
• CVE-2026-0300 — PAN-OS
• CVE-2025-0111 — PAN-OS
• CVE-2025-0108 — PAN-OS