Palo Alto Networks PAN-OS
YES - ON THE CISA KEV LIST
CVE-2024-3393
Palo Alto Networks PAN-OS Malicious DNS Packet Vulnerability
overdue since 2025-01-20
Palo Alto Networks: 16 entries (0.9% of all KEV entries are from this vendor); 3 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
Description
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.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://security.paloaltonetworks.com/CVE-2024-3393 ; https://nvd.nist.gov/vuln/detail/CVE-2024-3393
References
Other KEV entries for this vendor: Palo Alto Networks
- CVE-2026-0322 - PAN-OS (2026-10-14)
- CVE-2026-0257 - PAN-OS (2026-05-29)
- CVE-2026-0300 - PAN-OS (2026-05-06)
- CVE-2025-0111 - PAN-OS (2025-02-20)
- CVE-2025-0108 - PAN-OS (2025-02-18)
- CVE-2024-9474 - PAN-OS (2024-11-18)
- CVE-2024-0012 - PAN-OS (2024-11-18)
- CVE-2024-9465 - Expedition (2024-11-14)
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