---
id: CVE-2026-0283
title: >-
  An authentication bypass vulnerability in Large Scale VPN ( LSVPN)
  functionality of Palo Alto Networks PAN-OS software allows an attacker with
  network access to bypass security restrictions and establish an unauthorized
  site-to-site VPN …
summary: >-
  An authentication bypass vulnerability in Large Scale VPN ( LSVPN)
  functionality of Palo Alto Networks PAN-OS software allows an attacker with
  network access to bypass security restrictions and establish an unauthorized
  site-to-site VPN …
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-306
vendor: paloaltonetworks
product: pan-os
affected:
  - 'pan-os >= 10.2.0, < 10.2.7'
  - 'pan-os >= 10.2.8, < 10.2.10'
  - 'pan-os >= 10.2.11, < 10.2.13'
  - 'pan-os >= 10.2.14, < 10.2.16'
  - pan-os = 10.2.7
  - pan-os = 10.2.10
  - pan-os = 10.2.13
  - pan-os = 10.2.16
  - pan-os = 10.2.17
  - pan-os = 10.2.18
  - 'pan-os >= 11.1.0, < 11.1.4'
  - 'pan-os >= 11.1.8, < 11.1.10'
  - 'pan-os >= 11.1.11, < 11.1.13'
  - 'pan-os >= 11.1.14, < 11.1.16'
  - pan-os = 11.1.4
  - pan-os = 11.1.5
  - pan-os = 11.1.6
  - pan-os = 11.1.10
  - pan-os = 11.1.13
  - 'pan-os >= 11.2.0, < 11.2.4'
  - 'pan-os >= 11.2.5, < 11.2.7'
  - 'pan-os >= 11.2.8, < 11.2.10'
  - 'pan-os >= 11.2.11, < 11.2.13'
  - pan-os = 11.2.4
  - pan-os = 11.2.7
  - pan-os = 11.2.10
  - 'pan-os >= 12.1.2, < 12.1.4'
  - 'pan-os >= 12.1.5, < 12.1.7'
  - pan-os = 12.1.4
  - pan-os = 12.1.7
patched:
  - pan-os 12.1.7
published: '2026-07-09'
updated: '2026-07-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-0283'
references:
  - url: 'https://security.paloaltonetworks.com/CVE-2026-0283'
    label: psirt@paloaltonetworks.com
tags:
  - nvd
epss: 0.00376
epssPercentile: 0.28856
ingestedAt: '2026-07-13T13:27:18.331Z'
---

## Overview

An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection.

Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.

## Affected

- `pan-os >= 10.2.0, < 10.2.7`
- `pan-os >= 10.2.8, < 10.2.10`
- `pan-os >= 10.2.11, < 10.2.13`
- `pan-os >= 10.2.14, < 10.2.16`
- `pan-os = 10.2.7`
- `pan-os = 10.2.10`
- `pan-os = 10.2.13`
- `pan-os = 10.2.16`
- `pan-os = 10.2.17`
- `pan-os = 10.2.18`
- `pan-os >= 11.1.0, < 11.1.4`
- `pan-os >= 11.1.8, < 11.1.10`
- `pan-os >= 11.1.11, < 11.1.13`
- `pan-os >= 11.1.14, < 11.1.16`
- `pan-os = 11.1.4`
- `pan-os = 11.1.5`
- `pan-os = 11.1.6`
- `pan-os = 11.1.10`
- `pan-os = 11.1.13`
- `pan-os >= 11.2.0, < 11.2.4`
- `pan-os >= 11.2.5, < 11.2.7`
- `pan-os >= 11.2.8, < 11.2.10`
- `pan-os >= 11.2.11, < 11.2.13`
- `pan-os = 11.2.4`
- `pan-os = 11.2.7`
- `pan-os = 11.2.10`
- `pan-os >= 12.1.2, < 12.1.4`
- `pan-os >= 12.1.5, < 12.1.7`
- `pan-os = 12.1.4`
- `pan-os = 12.1.7`

## Remediation

Upgrade past the affected range:

- `pan-os 12.1.7`