Vulnerability Description
Multiple vulnerabilities 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, adjacent attacker to cause a denial of service (DoS) condition of an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit these vulnerabilities by sending a malformed CAPWAP packet to an affected device. 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 | 16.12.1 |
| 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-2020-3493?
CVE-2020-3493 is a vulnerability with a CVSS score of 7.4 (HIGH). Multiple vulnerabilities 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...
How severe is CVE-2020-3493?
CVE-2020-3493 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3493?
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.