CVE-2020-3489: Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerabilities
First published: Thu Sep 24 2020(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| 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 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is CVE-2020-3489?
CVE-2020-3489 is 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.
What is the severity of CVE-2020-3489?
The severity of CVE-2020-3489 is high with a CVSS score of 7.4.
How does CVE-2020-3489 affect Cisco IOS XE Software?
CVE-2020-3489 can cause a denial of service (DoS) condition in Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers.
Is Cisco Catalyst 9800-40 affected by CVE-2020-3489?
No, Cisco Catalyst 9800-40 is not vulnerable to CVE-2020-3489.
How can I fix CVE-2020-3489?
To fix CVE-2020-3489, it is recommended to apply the necessary updates or patches provided by Cisco.
- collector/nvd-index
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/references
- agent/weakness
- agent/title
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/tags
- agent/event
- vendor/cisco
- canonical/cisco ios xe
- version/cisco ios xe/16.12.1
- canonical/cisco catalyst 9800-40
- canonical/cisco catalyst 9800-80
- canonical/cisco catalyst 9800-cl
- canonical/cisco catalyst 9800-l
- canonical/cisco catalyst 9800-l-c
- canonical/cisco catalyst 9800-l-f