Palo Alto GlobalProtect App up to 6.0.12/6.0.13/6.1.12 certificate validation

Summaryinfo

A vulnerability was found in Palo Alto GlobalProtect App up to 6.0.12/6.0.13/6.1.12. It has been declared as problematic. This affects an unknown function. Executing a manipulation can lead to certificate validation. This vulnerability is tracked as CVE-2026-0249. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Palo Alto GlobalProtect App up to 6.0.12/6.0.13/6.1.12 and classified as problematic. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect integrity. CVE summarizes:

Multiple improper certificate validation vulnerabilities in the Palo Alto Networks GlobalProtect™ app enables an attacker to intercept encrypted communications and potentially compromise the endpoint. This can enable a local non-administrative operating system user or an attacker on the same subnet to redirect traffic to an unauthorized server and facilitate the installation of malicious software. The GlobalProtect app on Linux, Windows, iOS and GlobalProtect UWP app are not affected.

The advisory is shared for download at security.paloaltonetworks.com. This vulnerability was named CVE-2026-0249 since 11/03/2025. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

Upgrading to version 6.0.13, 6.0.14, 6.1.13, 6.2.8-h10 (6.2.8-948) or 6.3.3-h9 (6.3.3-999) eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1535). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• Palo Alto Networks GlobalProtect

Productinfo

Vendor

• Palo Alto

Name

• GlobalProtect App

Version

• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5
• 6.0.6
• 6.0.7
• 6.0.8
• 6.0.9
• 6.0.10
• 6.0.11
• 6.0.12
• 6.0.13
• 6.1.0
• 6.1.1
• 6.1.2
• 6.1.3
• 6.1.4
• 6.1.5
• 6.1.6
• 6.1.7
• 6.1.8
• 6.1.9
• 6.1.10
• 6.1.11
• 6.1.12

License

• commercial

Website

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

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

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