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Palo Alto Networks Security AdvisoriesCVE-2026-0297

CVE-2026-0297: GlobalProtect App: Buffer Overflow Vulnerability during UDP Tunnel Handshake

A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man-in-the-middle (MitM) attacker or a rogue gateway to disrupt system processes and potentially execute arbitrary code with elevated privileges (SYSTEM privileges on Windows, and root privileges on macOS and Linux).

Read the vendor bulletin Get alerts for GlobalProtect App
7.7CVSS out of 10High severity
Scope

What the vendor says is affected

  • GlobalProtect App
  • GlobalProtect App 6.3
  • GlobalProtect App 6.2
  • GlobalProtect App 6.0

Versions the vendor lists as fixed

  • GlobalProtect App 6.3 >= 6.3.3-h15 on Linux (ETA: 09/17), >= 6.3.3-h14 on macOS, >= 6.3.3-h14 on Windows, >= 6.3.5 on iOS, >= 6.3.5 on Android, >= 6.3.5 on Chrome OS
  • GlobalProtect App 6.2 None on Linux, >= 6.2.8-h13 on macOS, >= 6.2.8-h13 on Windows
  • GlobalProtect App 6.0 >= 6.0.15 on Linux (ETA: 10/29), >= 6.0.15 on macOS (ETA: 10/29), >= 6.0.15 on Windows (ETA: 10/29), >= 6.0.15 on iOS (ETA: 10/29), >= 6.0.15 on Android (ETA: 1
Next step

What the vendor recommends

VERSION MINOR VERSION SUGGESTED SOLUTION GlobalProtect App 6.3/6.2 on Linux 6.2.0 through 6.3.3-h14 Upgrade to 6.3.3-h15 or later. GlobalProtect App 6.0 on Linux 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App 6.3 on macOS 6.3.0 through 6.3.3-h13 Upgrade to 6.3.3-h14 (6.3.3-1121) or later. GlobalProtect App 6.2 on macOS 6.2.0 through 6.2.8-h12 Upgrade to 6.2.8-h13 (6.2.8-1045) or later. GlobalProtect App 6.0 on macOS 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App 6.3 on Windows 6.3.0 through 6.3.3-h13 Upgrade to 6.3.3-h14 (6.3.3-1121) or later. GlobalProtect App 6.2 on Windows 6.2.0 through 6.2.8-h12 Upgrade to 6.2.8-h13 (6.2.8-1045) or later. GlobalProtect App 6.0 on Windows 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App 6.3/6.1 on iOS 6.1.0 through 6.3.4 Upgrade to 6.3.5 or later. GlobalProtect App 6.0 on iOS 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App 6.3/6.1 on Android 6.1.0 through 6.3.4 Upgrade to 6.3.5 or later. GlobalProtect App 6.0 on Android 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later. GlobalProtect App 6.3/6.1 on ChromeOS 6.1.0 through 6.3.4 Upgrade to 6.3.5 or later. GlobalProtect App 6.0 on ChromeOS 6.0.0 through 6.0.14 Upgrade to 6.0.15 or later.

Review the complete instructions on the vendor's site
Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Added fixed versions: GlobalProtect App 6.0 >= 6.0.15 on Linux (ETA: 10/29), >= 6.0.15 on macOS (ETA: 10/29), >= 6.0.15 on Windows (ETA: 10/29), >= 6.0.15 on iOS (ETA: 10/29), >= 6.0.15 on Android (ETA: 1, GlobalProtect App 6.2 None on Linux....
    • Removed fixed versions: GlobalProtect App 6.0 >= 6.0.15 on Linux (ETA: 08/31), >= 6.0.15 on macOS (ETA: 08/31), >= 6.0.15 on Windows (ETA: 08/31), >= 6.0.15 on iOS (ETA: 08/31), >= 6.0.15 on Android (ETA: 0, GlobalProtect App 6.2 None on Linux....
Timeline

When this advisory changed

  1. Published by Palo Alto Networks

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Updated by Palo Alto Networks

    The vendor changed the advisory after it was first published.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-0297View CVSS, KEV, EPSS, and threat context
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