Rapid7 Observed Exploitation of PAN-OS GlobalProtect Authentication Bypass Vulnerability (CVE-2026-0257)

Overview On May 13, 2026, Palo Alto Networks published a security advisory for CVE-2026-0257, a medium severity authentication bypass affecting PAN-OS and Prisma Access when a specific configuration is present. Successful exploitation of this vulnerability allows a remote unauthenticated attacker...

CVE-2026-0257

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues...

VulnCheck KEV: CVE-2026-0257

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues...

CVE-2026-0249

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 subn...

Palo Alto GlobalProtect App 6.0.x < 6.0.13 / 6.2.x < 6.2.8-h10 / 6.3.x < 6.3.3-h9 Multiple Vulnerabilities

The version of Palo Alto GlobalProtect App installed on the remote host is 6.0.x prior to 6.0.13, 6.2.x prior to 6.2.8-h10, or 6.3.x prior to 6.3.3-h9. It is, therefore, affected by multiple vulnerabilities: - A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect app that...

Palo Alto GlobalProtect App MacOS 6.0.x < 6.0.13 / 6.2.x < 6.2.8-h10 / 6.3.x < 6.3.3-h9 Improper Certificate Validation (CVE-2026-0249)

The version of Palo Alto GlobalProtect App installed on the remote macOS host is 6.0.x prior to 6.0.13, 6.2.x prior to 6.2.8-h10, or 6.3.x prior to 6.3.3-h9. It is, therefore, affected by an improper certificate validation vulnerability: - Multiple improper certificate validation vulnerabilities ...

EUVD-2026-30100

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 subn...

EUVD-2026-30104

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues...

EUVD-2026-30101

A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man in the middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This vulnerability is triggered during the processing of requests and responses...

EUVD-2026-30102

Multiple local privilege escalation vulnerabilities in the Palo Alto Networks GlobalProtect™ app allow a local user to escalate their privileges to NT AUTHORITY\SYSTEM on Windows and root on macOS and Linux. This enables a non-administrative user to execute arbitrary commands with administrative...

CVE-2026-0257

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection. Panorama and Cloud NGFW are not impacted by these issues...

CVE-2026-0249

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 subn...

CVE-2026-0251

Multiple local privilege escalation vulnerabilities in the Palo Alto Networks GlobalProtect™ app allow a local user to escalate their privileges to NT AUTHORITY\SYSTEM on Windows and root on macOS and Linux. This enables a non-administrative user to execute arbitrary commands with administrative...

CVE-2026-0250

A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man in the middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This vulnerability is triggered during the processing of requests and responses...

CVE-2026-0249 GlobalProtect App: Certificate Validation Bypass Vulnerabilities

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 subn...

CVE-2026-0249

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 subn...

CVE-2026-0249 GlobalProtect App: Certificate Validation Bypass Vulnerabilities

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 subn...

CVE-2026-0249

CVE-2026-0249 describes multiple improper certificate validation vulnerabilities in the Palo Alto Networks GlobalProtect app. The provided documents state that the GlobalProtect app is not affected on Linux, Windows, iOS, or GlobalProtect UWP, implying that other platforms may be impacted, but th...

CVE-2026-0250 GlobalProtect App: Buffer Overflow Vulnerability during connection to Portal or Gateway

A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man in the middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This vulnerability is triggered during the processing of requests and responses...

CVE-2026-0250

The vulnerability CVE-2026-0250 affects the Palo Alto Networks GlobalProtect app (not on iOS) and is caused by a buffer overflow in the processing of requests/responses exchanged between Portal and Gateway. This could allow a man-in-the-middle to disrupt system processes and potentially execute a...