Vulnerability Description
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of an affected device. The vulnerability is due to insufficient input validation during CAPWAP packet processing. An attacker could exploit this vulnerability by sending a crafted CAPWAP packet to an affected device, resulting in a buffer over-read. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xe | 16.12 |
| Cisco | Catalyst 9800-40 | - |
| Cisco | Catalyst 9800-80 | - |
| Cisco | Catalyst 9800-Cl | - |
| Cisco | Catalyst 9800-L | - |
| Cisco | Catalyst 9800-L-C | - |
| Cisco | Catalyst 9800-L-F | - |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cVendor Advisory
FAQ
What is CVE-2020-3399?
CVE-2020-3399 is a vulnerability with a CVSS score of 8.6 (HIGH). A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unaut...
How severe is CVE-2020-3399?
CVE-2020-3399 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3399?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe, Cisco Catalyst 9800-40, Cisco Catalyst 9800-80, Cisco Catalyst 9800-Cl, Cisco Catalyst 9800-L.