Live › vulnerability › CVE-2024-3393
Go to dashboardA malformed DNS packet sent to a Palo Alto Networks PAN-OS firewall with DNS Security enabled can make the firewall reboot, and repeated attempts put it into maintenance mode. CISA lists it as actively exploited.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Palo Alto Networks PAN-OS | vendor | – | – |
| paloaltonetworks pan-os | vendor | >= 11.1.0, <= 11.1.1 | – |
| paloaltonetworks pan-os | vendor | >= 11.2.0, < 11.2.3 | 11.2.3 |
| paloaltonetworks pan-os | vendor | = 10.1.14 | – |
| paloaltonetworks pan-os | vendor | = 10.2.8 | – |
| paloaltonetworks pan-os | vendor | = 10.2.9 | – |
| paloaltonetworks pan-os | vendor | = 10.2.10 | – |
| paloaltonetworks pan-os | vendor | = 10.2.11 | – |
| paloaltonetworks pan-os | vendor | = 10.2.12 | – |
| paloaltonetworks pan-os | vendor | = 10.2.13 | – |
| paloaltonetworks pan-os | vendor | = 11.1.2 | – |
| paloaltonetworks pan-os | vendor | = 11.1.3 | – |
| paloaltonetworks pan-os | vendor | = 11.1.4 | – |
| paloaltonetworks prisma access | vendor | – | – |
Check whether DNS Security is enabled on the PAN-OS firewall; the sources do not give a specific command or setting path.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Palo Alto Networks PAN-OS contains a vulnerability in parsing and logging malicious DNS packets in the DNS Security feature that, when exploited, allows an unauthenticated attacker to remotely reboot the firewall. Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
This page as .md · .json · in your agent: get_signal("CVE-2024-3393")
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