CVE-2026-0317: PAN-OS: Denial of Service Vulnerability
CVE-2026-0317
Summary
A buffer overflow vulnerability in the XML processing functionality of Palo Alto Networks PAN-OS® software enables an unauthenticated attacker with network access to the management web or dataplane interface to cause a denial of service (DoS) condition on VM-Series firewalls or execute arbitrary code with root privileges on the PA-Series firewalls.
Panorama is impacted by this vulnerability.
Products covered
Cloud NGFW
PAN-OS
Prisma Access
PAN-OS 12.2
PAN-OS 12.1
PAN-OS 11.2
PAN-OS 11.1
PAN-OS 10.2
Show 3 more products
Prisma Access 12.1
Prisma Access 11.2
Prisma Access 10.2
Remediation
Version | Minor Version | Suggested Solution |
|---|---|---|
Cloud NGFW | Customers who prefer to upgrade can work with Palo Alto Networks support to schedule an on-demand software upgrade. | |
PAN-OS 12.2 | 12.2.0 through 12.2.2 | Upgrade to 12.2.3 or later. |
PAN-OS 12.1 | 12.1.8 through 12.1.9 | Upgrade to 12.1.10 or later. |
12.1.5 through 12.1.7-h* | Upgrade to 12.1.7-h5 or 12.1.10 or later. | |
12.1.2 through 12.1.4-h* | Upgrade to 12.1.4-h10 or 12.1.10 or later. | |
PAN-OS 11.2 | 11.2.11 through 11.2.13-h* | Upgrade to 11.2.13-h2 or later. |
11.2.8 through 11.2.10-h* | Upgrade to 11.2.10-h14 or later. | |
11.2.5 through 11.2.7-h* | Upgrade to 11.2.7-h20 or later. | |
11.2.0 through 11.2.4-h* | Upgrade to 11.2.4-h21 or later. | |
PAN-OS 11.1 | 11.1.14 through 11.1.16-h* | Upgrade to 11.1.16-h2 or later. |
11.1.11 through 11.1.13-h* | Upgrade to 11.1.13-h12 or later. | |
11.1.8 through 11.1.10-h* | Upgrade to 11.1.10-h33 or later. | |
11.1.7 through 11.1.7-h* | Upgrade to 11.1.7-h10 or later. | |
11.1.5 through 11.1.6-h* | Upgrade to 11.1.6-h38 or later. | |
11.1.0 through 11.1.4-h* | Upgrade to 11.1.4-h36 or later. | |
PAN-OS 10.2 | 10.2.17 through 10.2.18-h* | Upgrade to 10.2.18-h10 or later. |
10.2.14 through 10.2.16-h* | Upgrade to 10.2.16-h10 or later. | |
10.2.11 through 10.2.13-h* | Upgrade to 10.2.13-h24 or later. | |
10.2.8 through 10.2.10-h* | Upgrade to 10.2.10-h40 or later. | |
10.2.0 through 10.2.7-h* | Upgrade to 10.2.7-h37 or later. | |
All older unsupported PAN-OS versions | Upgrade to a supported fixed version. | |
Prisma Access 12.1 | 12.1.2 through 12.1.* | Upgrade to 12.1.7-h5 or later. |
Prisma Access 11.2 | 11.2.0 through 11.2* | Upgrade to 11.2.7-h20 or later. |
Prisma Access 10.2 | 10.2.0 through 10.2.* | Upgrade to 10.2.10-h40 or later. |
* See the note under Product Status for information regarding Prisma Access and Cloud NGFW upgrades.
Vendor-listed fixes
Cloud NGFW None on AWS*, None on Azure*
PAN-OS 12.2 >= 12.2.3
PAN-OS 12.1 >= 12.1.4-h10, >= 12.1.7-h5, >= 12.1.10
PAN-OS 11.2 >= 11.2.4-h21, >= 11.2.7-h20, >= 11.2.10-h14, >= 11.2.13-h2
PAN-OS 11.1 >= 11.1.4-h36, >= 11.1.6-h38, >= 11.1.7-h10, >= 11.1.10-h33, >= 11.1.13-h12, >= 11.1.16-h2
PAN-OS 10.2 >= 10.2.7-h37, >= 10.2.10-h40, >= 10.2.13-h24, >= 10.2.16-h10, >= 10.2.18-h10
Prisma Access 12.1 >= 12.1.7-h5*
Prisma Access 11.2 >= 11.2.7-h20*
Show 1 more fixes
Prisma Access 10.2 >= 10.2.10-h40*
CVEs in this advisory 1
Update history
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Updates
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