CVE-2026-0283 PUBLISHED

PAN-OS: Authentication Bypass Vulnerability in Large Scale VPN (LSVPN)

Assigner: palo_alto
Reserved: 03.11.2025 Published: 09.07.2026 Updated: 09.07.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
CVSS Score: 4.5

The risk is highest when you allow access to the management interface from external IP addresses on the internet.

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	High
Attack Complexity	Low	Integrity	Low	Integrity	Low
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

The risk is highest when you allow access to the management interface from external IP addresses on the internet.

CVSS 4.0

Product Status

Vendor	Palo Alto Networks
Product	Cloud NGFW
Versions	Default: unaffected Version All is unaffected

Vendor	Palo Alto Networks
Product	PAN-OS
Versions	Default: unaffected affected from 12.1.0 to 12.1.8 (excl.) affected from 11.2.0 to 11.2.13 (excl.) affected from 11.1.0 to 11.1.16 (excl.) affected from 10.2.0 to 10.2.18-h8 (excl.)

Vendor	Palo Alto Networks
Product	Prisma Access
Versions	Default: unaffected Version All is unaffected

Exploits

Palo Alto Networks is not aware of any malicious exploitation of this issue.

Credits

Vaibhav Nagar (internal reporter) and our internal security research teams finder

References

https://security.paloaltonetworks.com/CVE-2026-0283

Problem Types

CWE-306 Missing Authentication for Critical Function CWE

Impacts

CAPEC-115 Authentication Bypass