Vulnerability in Palo Alto Networks Cloud NGFW

[ Description ]Official description

Denial of service vulnerabilities in Palo Alto Networks PAN-OS® software allow an unauthenticated attacker with network access to cause a denial of service (DoS) condition by sending specially crafted network traffic to or through a dataplane interface. Repeated attempts to trigger this condition result in the firewall entering maintenance mode. Cloud NGFW and Panorama are not affected by this vulnerability.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• CERT-FR15 Oct 2026CERTFR-2026-AVI-1326

  Multiple vulnerabilities in Palo Alto Networks products Translated from French

  Multiple vulnerabilities have been discovered in Palo Alto Networks products. Some of them allow an attacker to cause remote arbitrary code execution, privilege escalation and remote denial of service. Palo Alto…

  CVE-2026-87464CVE-2026-87646CVE-2026-87445+458 more CVEs
• BSI CERT-Bund14 Oct 2026WID-SEC-2026-3947

  Palo Alto Networks PAN-OS: Multiple vulnerabilities Translated from German

  CVE-2026-0317CVE-2026-0322CVE-2026-0318+4 more CVEs

[ References ]References

• security.paloaltonetworks.com/CVE-2026-0321