cvedb.io
CVE-2021-3063
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2021-11-10T17:15:10.507 · Last modified 2026-06-17T04:04:40.257

Summary

An improper handling of exceptional conditions vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.21; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h4; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8-h4; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers are not impacted by this issue.

Affected products

paloaltonetworks — pan-os

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.