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CVE-2026-0249 Palo Alto Networks CVE debrief

CVE-2026-0249 is a MEDIUM severity vulnerability in Palo Alto Networks' GlobalProtect app. Multiple improper certificate validation vulnerabilities enable an attacker to intercept encrypted communications and potentially compromise the endpoint. This can allow 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.

Vendor
Palo Alto Networks
Product
GlobalProtect App
CVSS
MEDIUM 4.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-13
Original CVE updated
2026-07-14
Advisory published
2026-05-13
Advisory updated
2026-07-14

Who should care

Organizations using Palo Alto Networks GlobalProtect app on macOS, Android, and Chrome platforms should prioritize patching, as an attacker could exploit this vulnerability to intercept encrypted communications and potentially compromise the endpoint.

Technical summary

The CVE-2026-0249 vulnerability affects Palo Alto Networks GlobalProtect app versions on macOS, Android, and Chrome platforms prior to the fixed versions. The vulnerability allows an attacker to intercept encrypted communications, potentially leading to endpoint compromise. The CVSS score for this vulnerability is 4.9, indicating a MEDIUM severity level. Affected product deployments should be identified in managed environments, and owners should be assigned for follow-up. The GlobalProtect app on Linux, Windows, iOS, and GlobalProtect UWP app are not affected.

Defensive priority

Patching affected GlobalProtect app instances is crucial to prevent potential exploitation. Verify and apply vendor-provided patches to ensure secure certificate validation.

Recommended defensive actions

  • Apply patches for affected GlobalProtect app versions on macOS, Android, and Chrome platforms.
  • Verify that GlobalProtect app instances are running fixed versions.
  • Monitor for suspicious traffic redirection and unauthorized server connections.
  • Implement compensating controls, such as network segmentation and intrusion detection.
  • Review relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record was published on 2026-05-13T19:16:59.073Z and was last modified on 2026-07-14T16:40:37.713Z. The NVD entry is currently Analyzed. The vulnerability has been confirmed to affect macOS, Android, and Chrome platforms. Evidence limits suggest that defenders should verify affected scope and vendor guidance. No additional facts are known about the vulnerability beyond what is provided in the CVE record and NVD entry.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-05-13T19:16:59.073Z and has not been modified since then. The NVD entry is currently Analyzed.