CVE-2026-0317: PAN-OS: Denial of Service Vulnerability
CVE-2026-0317
Summary
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.
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 | No action needed. | |
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. | |
All older unsupported PAN-OS versions | Upgrade to a supported fixed version. | |
Prisma Access 12.1 | 12.1.0 through 12.1.* | Upgrade to 12.1.7-h8 or later. |
Prisma Access 11.2 | 11.2.0 through 11.2.* | Upgrade to 11.2.7-h21 or later. |
Prisma Access 10.2 | 10.2.0 through 10.2.* | Upgrade to 10.2.10-h41 or later. |
* See the note under Product Status for information regarding Prisma Access upgrades.
Vendor-listed fixes
Cloud NGFW All
PAN-OS 12.2 >= 12.2.4
PAN-OS 12.1 >= 12.1.4-h12, >= 12.1.7-h8, >= 12.1.10-h2
PAN-OS 11.2 >= 11.2.4-h22, >= 11.2.7-h21, >= 11.2.10-h15, >= 11.2.13-h3, >= 11.2.16
PAN-OS 11.1 >= 11.1.4-h37, >= 11.1.6-h39, >= 11.1.7-h11, >= 11.1.10-h35, >= 11.1.13-h15, >= 11.1.16-h3
PAN-OS 10.2 >= 10.2.7-h38, >= 10.2.10-h41, >= 10.2.13-h26, >= 10.2.16-h11, >= 10.2.18-h12
Prisma Access 12.1 >= 12.1.7-h8*
Prisma Access 11.2 >= 11.2.7-h21*
Show 1 more fixes
Prisma Access 10.2 >= 10.2.10-h41*
CVEs in this advisory 1
Update history
What changed in later vendor updates
SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.
- Added fixed versions: PAN-OS 11.2 >= 11.2.4-h22, >= 11.2.7-h21, >= 11.2.10-h15, >= 11.2.13-h3, >= 11.2.16.
- Removed fixed versions: PAN-OS 11.2 >= 11.2.4-h22, >= 11.2.7-h21, >= 11.2.10-h15, >= 11.2.13-h3, >= 11.2.16 (ETA: 10/15).
Updates
- Published by Palo Alto Networks
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Updated by Palo Alto Networks
The vendor changed the advisory after it was first published.
- Confirmed at the source
Our collector saw this advisory during a later source check.