CVE-2026-0321
Received
Received - Intake
Denial of Service in Palo Alto PAN-OS Software
Vulnerability report for CVE-2026-0321, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-14
Last updated on: 2026-10-14
Assigner: Palo Alto Networks, Inc.
Description
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.
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Palo | Alto | Networks PAN-OS 12.2.0 |
| Palo | Alto | Networks PAN-OS 12.1.0 |
| Palo | Alto | Networks PAN-OS 11.2.0 |
| Palo | Alto | Networks PAN-OS 11.1.0 |
| Palo | Alto | Networks PAN-OS 10.2.0 |
| Palo | Alto | Networks Prisma Access 12.1.0 |
| Palo | Alto | Networks Prisma Access 11.2.0 |
| Palo | Alto | Networks Prisma Access 10.2.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-754 | The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. |
