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VulnerabilityKnown exploitedExploit likelihood 29%
Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability
CVE-2024-3393 · CISA KEV · December 30, 2024
Summary
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.
From CISA, quoted as published. Check the source before acting.
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA required action, quoted.
Affected products
| Vendor | Product |
|---|---|
| Palo Alto Networks | PAN-OS |
Why it's on these mode pages
- Maritime: Vendor table: Palo Alto Networks (network and remote-access gear used in every mode, all modes) (matched by rule)
- Pipeline: Vendor table: Palo Alto Networks (network and remote-access gear used in every mode, all modes) (matched by rule)
- Freight rail: Vendor table: Palo Alto Networks (network and remote-access gear used in every mode, all modes) (matched by rule)
- Passenger rail and transit: Vendor table: Palo Alto Networks (network and remote-access gear used in every mode, all modes) (matched by rule)
- Highway and motor carrier: Vendor table: Palo Alto Networks (network and remote-access gear used in every mode, all modes) (matched by rule)
- Postal and parcel: Vendor table: Palo Alto Networks (network and remote-access gear used in every mode, all modes) (matched by rule)
Change history
- November 9, 2026: First collected by Watch
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