CVE-2026-0321
PAN-OS: Denial of Service (DoS) Vulnerabilities in Network Services
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.
Weakness: CWE-754
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Palo Alto Networks | PAN-OS Check your version | Firewall / NGFW | cna-assigner |
| Palo Alto Networks | Prisma Access | SASE / SSE / Secure Web | cna-assigner |
Vendor-reported products (3)
- Palo Alto Networks · Cloud NGFW — vendor states not affected
- Palo Alto Networks · PAN-OS
- Palo Alto Networks · Prisma Access
Credit
Ben Nott (internal reporter)
Vendor remediation
Version Minor Version Suggested Solution PAN-OS 12.2 12.2.0 through 12.2.3 Upgrade to 12.2.4 or later. PAN-OS 12.1 12.1.8 through 12.1.10-h* Upgrade to 12.1.10-h2 or later. 12.1.5 through 12.1.7-h* Upgrade to 12.1.7-h8 or 12.1.10-h2 or later. 12.1.2 through 12.1.4-h* Upgrade to 12.1.4-h12 or 12.1.10-h2 or later. PAN-OS 11.2 11.2.14 through 11.2.15-h* Upgrade to 11.2.16 or later. 11.2.11 through 11.2.13-h* Upgrade to 11.2.13-h3 or 11.2.16 or later. 11.2.8 through 11.2.10-h* Upgrade to 11.2.10-h15 or 11.2.16 or later. 11.2.5 through 11.2.7-h* Upgrade to 11.2.7-h21 or 11.2.16 or later. 11.2.0 through 11.2.4-h* Upgrade to 11.2.4-h22 or 11.2.16 or later. PAN-OS 11.1 11.1.14 through 11.1.16-h* Upgrade to 11.1.16-h3 or later. 11.1.11 through 11.1.13-h* Upgrade to 11.1.13-h15 or 11.1.16-h3 or later. 11.1.8 through 11.1.10-h* Upgrade to 11.1.10-h35 or 11.1.16-h3 or later. 11.1.7 through 11.1.7-h* Upgrade to 11.1.7-h11 or 11.1.16-h3 or later. 11.1.5 through 11.1.6-h* Upgrade to 11.1.6-h39 or 11.1.16-h3 or later. 11.1.0 through 11.1.4-h* Upgrade to 11.1.4-h37 or 11.1.16-h3 or later. PAN-OS 10.2 10.2.17 through 10.2.18-h* Upgrade to 10.2.18-h12 or later. 10.2.14 through 10.2.16-h* Upgrade to 10.2.16-h11 or 10.2.18-h12 or later. 10.2.11 through 10.2.13-h* Upgrade to 10.2.13-h26 or 10.2.18-h12 or later. 10.2.8 through 10.2.10-h* Upgrade to 10.2.10-h41 or 10.2.18-h12 or later. 10.2.0 through 10.2.7-h* Upgrade to 10.2.7-h38 or 10.2.18-h12 or later. Prisma Access needs to be upgraded in accordance with product status table.