Globalprotect — CraftedSignal Threat Feedhttps://feed.craftedsignal.io/tags/globalprotect/Trending threats, MITRE ATT&CK coverage, and detection metadata. Fed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioWed, 13 May 2026 16:07:33 +0000CVE-2026-0249 GlobalProtect App: Certificate Validation Bypass Vulnerabilitieshttps://feed.craftedsignal.io/briefs/2026-05-cve-2026-0249-globalprotect-cert-bypass/Wed, 13 May 2026 16:07:33 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-05-cve-2026-0249-globalprotect-cert-bypass/CVE-2026-0249 describes multiple improper certificate validation vulnerabilities in the Palo Alto Networks GlobalProtect app that could allow an attacker to intercept encrypted communications and potentially compromise the endpoint, especially on macOS, Android, and ChromeOS.Palo Alto Networks has disclosed CVE-2026-0249, which details certificate validation bypass vulnerabilities within the GlobalProtect app. Successful exploitation could allow a man-in-the-middle attacker on the same network segment to intercept encrypted communications between the GlobalProtect client and the VPN server, potentially leading to the compromise of the endpoint. The vulnerability affects specific versions of the GlobalProtect app on macOS, Android and ChromeOS. Specifically, macOS versions 6.0.0 through 6.0.12, 6.2.0 through 6.2.8-h9, and 6.3.0 through 6.3.3-h8 are affected. Android and ChromeOS versions 6.0.0 through 6.0.13 and 6.1.0 through 6.1.12 are also vulnerable. Windows, Linux and iOS are not affected. This vulnerability could facilitate the installation of malicious software by redirecting traffic to an attacker-controlled server.

Attack Chain

  1. Attacker gains a man-in-the-middle position on the same network as the GlobalProtect client. This could be achieved through ARP spoofing or rogue Wi-Fi access points.
  2. The user launches the vulnerable GlobalProtect app on macOS, Android, or ChromeOS.
  3. The GlobalProtect app attempts to establish a VPN connection to the legitimate VPN server.
  4. Due to the certificate validation vulnerabilities (CWE-295), the attacker intercepts the TLS handshake.
  5. The attacker presents a fraudulent certificate to the GlobalProtect app. The app fails to properly validate the certificate.
  6. An encrypted tunnel is established between the GlobalProtect client and the attacker’s server.
  7. All network traffic from the GlobalProtect client is now routed through the attacker’s server.
  8. The attacker redirects traffic destined for legitimate resources to attacker-controlled servers, facilitating the installation of malicious software.

Impact

Successful exploitation of CVE-2026-0249 can allow an attacker to intercept sensitive information transmitted through the VPN connection. An attacker can redirect traffic and potentially install malware, leading to data breaches, system compromise, and further lateral movement within the network. Palo Alto Networks is not aware of any malicious exploitation of these issues. The affected platforms include macOS, Android and ChromeOS.

Recommendation

  • Upgrade GlobalProtect App on macOS to version 6.0.13 or later, 6.2.8-h10 (6.2.8-948) or later, and 6.3.3-h9 (6.3.3-999) or later to remediate CVE-2026-0249.
  • Upgrade GlobalProtect App on Android and ChromeOS to version 6.0.14 or later and 6.1.13 or later to remediate CVE-2026-0249.
  • Monitor network traffic for unexpected certificate errors or connections to unusual domains from GlobalProtect clients, using a network intrusion detection system.
  • Consider implementing additional security measures, such as multi-factor authentication and endpoint detection and response (EDR) solutions, to mitigate the risk of endpoint compromise.
]]>mediumadvisorycve-2026-0249certificate validationman-in-the-middleglobalprotectvpnCVE-2026-0251: Palo Alto Networks GlobalProtect App Local Privilege Escalationhttps://feed.craftedsignal.io/briefs/2026-05-cve-2026-0251-globalprotect-lpe/Wed, 13 May 2026 16:02:54 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-05-cve-2026-0251-globalprotect-lpe/Multiple local privilege escalation vulnerabilities exist in Palo Alto Networks GlobalProtect App, allowing a local user to escalate privileges to NT AUTHORITY\SYSTEM on Windows and root on macOS and Linux, enabling arbitrary command execution with administrative privileges.Multiple local privilege escalation vulnerabilities, tracked as CVE-2026-0251, affect Palo Alto Networks GlobalProtect App versions before 6.3.3-h9 on Windows and macOS, and before 6.3.3-h2 on Linux. A local, non-administrative user can exploit these vulnerabilities to escalate their privileges to NT AUTHORITY\SYSTEM on Windows and root on macOS and Linux. Successful exploitation allows the attacker to execute arbitrary commands with administrative privileges. The GlobalProtect app on iOS, Android, Chrome OS, and GlobalProtect UWP app are not affected. Palo Alto Networks internally discovered these vulnerabilities.

Attack Chain

  1. A non-administrative user gains local access to a system with a vulnerable version of the GlobalProtect App installed.
  2. The attacker identifies an exploitable path within the GlobalProtect App due to an untrusted search path (CWE-426).
  3. The attacker crafts a malicious executable or script and places it in a directory where the GlobalProtect App will search for it.
  4. The GlobalProtect App, running with elevated privileges (NT AUTHORITY\SYSTEM on Windows, root on macOS/Linux), attempts to load or execute the malicious file.
  5. Due to the untrusted search path, the attacker’s malicious file is executed instead of the intended legitimate application component.
  6. The malicious code executes with the elevated privileges of the GlobalProtect App.
  7. The attacker leverages the elevated privileges to execute arbitrary commands.

Impact

Successful exploitation of CVE-2026-0251 allows a local, non-administrative user to gain full administrative control over the affected system. This can lead to unauthorized data access, modification, or deletion, installation of malware, and complete system compromise. Palo Alto Networks is not aware of any malicious exploitation of these issues.

Recommendation

  • Upgrade GlobalProtect App on Windows to version 6.0.13 or later for 6.0, 6.2.8-h10 (6.2.8-948) or later for 6.2, and 6.3.3-h9 (6.3.3-999) or later for 6.3 to remediate CVE-2026-0251 as per the vendor advisory.
  • Upgrade GlobalProtect App on macOS to version 6.0.13 or later for 6.0, 6.2.8-h10 (6.2.8-948) or later for 6.2, and 6.3.3-h9 (6.3.3-999) or later for 6.3 to remediate CVE-2026-0251 as per the vendor advisory.
  • Upgrade GlobalProtect App on Linux to version 6.0.11 or later for 6.0 and 6.3.3-h2 (6.3.3-42) or later for 6.2 and 6.3 to remediate CVE-2026-0251 as per the vendor advisory.
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