Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2024-3393
Palo Alto Networks Cloud NGFW — PAN-OS: Firewall Denial of Service (DoS) in DNS Security Using a Specially Crafted Packet
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N L N N N N N H 8.7 .2912 98.1 YES
AFFECTED
Product Versions Fixed
Cloud NGFW unspecified All
PAN-OS 11.2.0 – 11.2.3
PAN-OS 11.2.0 – 10.2.0
TIMELINE
Apr 5 Reserved by palo_alto
Dec 27 Published (CNA: palo_alto)
Dec 30 Added to CISA KEV, remediation due 2025-01-20
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| April 5, 2024 | Reserved | Reserved by palo_alto |
| December 27, 2024 | Published | Published (CNA: palo_alto) |
| December 30, 2024 | KEV ADDED | Added to CISA KEV, remediation due 2025-01-20 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-3393 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
