Palo Alto PAN-OS LSVPN improper authorization

Summaryinfo

A vulnerability, which was classified as very critical, was found in Palo Alto PAN-OS. Affected is an unknown function of the component LSVPN. Such manipulation leads to improper authorization. This vulnerability is listed as CVE-2026-0283. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Palo Alto PAN-OS (affected version not known). It has been rated as very critical. Affected by this issue is some unknown functionality of the component LSVPN. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at security.paloaltonetworks.com. This vulnerability is handled as CVE-2026-0283 since 11/03/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/09/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-42678). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Firewall Software

Vendor

• Palo Alto

Name

• PAN-OS

License

• commercial

Website

• Vendor: https://www.paloaltonetworks.com/

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion