CVE-2020-3486: 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 | ||
| Cisco Catalyst 9105 | ||
| Cisco Catalyst 9115 | ||
| Cisco Catalyst 9117 | ||
| Cisco Catalyst 9120 | ||
| Cisco Catalyst 9130 | ||
| Cisco Catalyst 9800-40 | ||
| Cisco Catalyst 9800-80 | ||
| Cisco Catalyst 9800-cl | ||
| Cisco Catalyst 9800-l | ||
| Cisco Catalyst 9800 Embedded Wireless Controller |
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Reference Links
Frequently Asked Questions
What is CVE-2020-3486?
CVE-2020-3486 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-2020-3486?
The severity of CVE-2020-3486 is high with a CVSS score of 6.5.
How can an unauthenticated attacker exploit CVE-2020-3486?
An unauthenticated attacker can exploit CVE-2020-3486 through adjacent network access.
What is the impact of CVE-2020-3486?
The impact of CVE-2020-3486 is a denial of service (DoS) condition on the affected device.
How can I fix CVE-2020-3486?
To fix CVE-2020-3486, it is recommended to apply the necessary software updates provided by Cisco.
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- 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
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- vendor/cisco
- canonical/cisco ios xe
- canonical/cisco catalyst 9105
- canonical/cisco catalyst 9115
- canonical/cisco catalyst 9117
- canonical/cisco catalyst 9120
- canonical/cisco catalyst 9130
- canonical/cisco catalyst 9800-40
- canonical/cisco catalyst 9800-80
- canonical/cisco catalyst 9800-cl
- canonical/cisco catalyst 9800-l
- canonical/cisco catalyst 9800 embedded wireless controller