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Palo Alto Networks Security AdvisoriesCVE-2026-0331

CVE-2026-0331: PAN-OS: Sensitive Information Disclosure Vulnerability

HighVendor CVSS 8.7 / 10 1 CVE Published Nov 11, 2026 at 5:00 PM UTC

Summary

An information disclosure vulnerability in Palo Alto Networks PAN-OS® software enables an unauthenticated remote attacker with network access to obtain sensitive firewall and session information by sending traffic to or through a dataplane interface.

Panorama is 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

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 12.2.4-h*

Upgrade to 12.2.4-h2 or later.

PAN-OS 12.1

12.1.8 through 12.1.10-h*

Upgrade to 12.1.10-h4 or later.

12.1.5 through 12.1.7-h*

Upgrade to 12.1.7-h12 or later.

12.1.2 through 12.1.4-h*

Upgrade to 12.1.4-h14 or later.

PAN-OS 11.2

11.2.15 through 11.2.16-h*

Upgrade to 11.2.16-h2 or later.

11.2.11 through 11.2.13-h*

Upgrade to 11.2.13-h5 or 11.2.16-h2 or later.

11.2.8 through 11.2.10-h*

Upgrade to 11.2.10-h18 or 11.2.16-h2 or later.

11.2.5 through 11.2.7-h*

Upgrade to 11.2.7-h24 or 11.2.16-h2 or later.

11.2.0 through 11.2.4-h*

Upgrade to 11.2.4-h24 or 11.2.16-h2 or later.

PAN-OS 11.1

11.1.14 through 11.1.16-h*

Upgrade to 11.1.16-h5 or later.

11.1.11 through 11.1.13-h*

Upgrade to 11.1.13-h17 or 11.1.16-h5 or later.

11.1.8 through 11.1.10-h*

Upgrade to 11.1.10-h37 or 11.1.16-h5 or later.

11.1.7 through 11.1.7-h*

Upgrade to 11.1.7-h13 or 11.1.16-h5 or later.

11.1.5 through 11.1.6-h*

Upgrade to 11.1.6-h41 or 11.1.16-h5 or later.

11.1.0 through 11.1.4-h*

Upgrade to 11.1.4-h39 or 11.1.16-h5 or later.

PAN-OS 10.2

10.2.17 through 10.2.18-h*

Upgrade to 10.2.18-h14 or later.

10.2.14 through 10.2.16-h*

Upgrade to 10.2.16-h13 or 10.2.18-h14 or later.

10.2.11 through 10.2.13-h*

Upgrade to 10.2.13-h28 or 10.2.18-h14 or later.

10.2.8 through 10.2.10-h*

Upgrade to 10.2.10-h43 or 10.2.18-h14 or later.

10.2.0 through 10.2.7-h*

Upgrade to 10.2.7-h40 or 10.2.18-h14 or later.

All older

unsupported

PAN-OS versions

Upgrade to a supported fixed version.

Prisma Access 12.1

12.1.2 through 12.1.10-h*

Upgrade to 12.1.10-h4 or later.

Prisma Access 11.2

11.2.0 through 11.2.7-h*

Upgrade to 11.2.7-h24 or later.

Prisma Access 10.2

10.2.0 through 10.2.10-h*

Upgrade to 10.2.10-h43 or later.

* See the note under Product Status for information regarding Prisma Access upgrades.

Vendor-listed fixes

  • Cloud NGFW None*

  • PAN-OS 12.2 >= 12.2.4-h2

  • PAN-OS 12.1 >= 12.1.4-h14, >= 12.1.7-h12, >= 12.1.10-h4

  • PAN-OS 11.2 >= 11.2.4-h24, >= 11.2.7-h24, >= 11.2.10-h18, >= 11.2.13-h5, >= 11.2.16-h2

  • PAN-OS 11.1 >= 11.1.4-h39, >= 11.1.6-h41, >= 11.1.7-h13, >= 11.1.10-h37, >= 11.1.13-h17, >= 11.1.16-h5

  • PAN-OS 10.2 >= 10.2.7-h40, >= 10.2.10-h43, >= 10.2.13-h28, >= 10.2.16-h13, >= 10.2.18-h14

  • Prisma Access 12.1 >= 12.1.10-h4*

  • Prisma Access 11.2 >= 11.2.7-h24*

Show 1 more fixes
  • Prisma Access 10.2 >= 10.2.10-h43*

CVEs in this advisory 1

Updates

  1. Published by Palo Alto Networks

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.