CVE-2024-3393

8.7 highKEVEPSS 29%

High (8.7) in Palo Alto Networks PAN-OS. In CISA KEV since 2024-12-30. EPSS 29% chance of exploitation in the next 30 days.

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.

Severity

CVSS 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

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 29% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CISA KEV: listed 2024-12-30, due 2025-01-20
CWE: CWE-754
Published: 2024-12-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

paloaltonetworks:pan-os
paloaltonetworks:prisma_access

References

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