Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Paloaltonetworks | Pan-Os | >= 8.1.0, < 8.1.21 |
Related Weaknesses (CWE)
References
- https://security.paloaltonetworks.com/CVE-2021-3063Vendor Advisory
- https://security.paloaltonetworks.com/CVE-2021-3063Vendor Advisory
FAQ
What is CVE-2021-3063?
CVE-2021-3063 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 spe...
How severe is CVE-2021-3063?
CVE-2021-3063 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-3063?
Check the references section above for vendor advisories and patch information. Affected products include: Paloaltonetworks Pan-Os.