cvedb.io
CVE-2021-3053
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2021-09-08T17:15:12.093 · Last modified 2026-06-17T04:04:38.557

Summary

An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through the firewall that causes the service to crash. 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 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.

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.