CVE-2022-20622: Cisco Embedded Wireless Controller with Catalyst Access Points IP Flood Denial of Service Vulnerability
First published: Wed Apr 13 2022(Updated: )
A vulnerability in IP ingress packet processing of the Cisco Embedded Wireless Controller with Catalyst Access Points Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, causing a denial of service (DoS) condition. The device may experience a performance degradation in traffic processing or high CPU usage prior to the unexpected reload. This vulnerability is due to improper rate limiting of IP packets to the management interface. An attacker could exploit this vulnerability by sending a steady stream of IP traffic at a high rate to the management interface of the affected device. A successful exploit could allow the attacker to cause the device to reload.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Aironet Access Point Software | >=17.3<17.3.4 | |
| Cisco Aironet Access Point Software | >=17.4<17.6.1 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-20622?
CVE-2022-20622 is a vulnerability in the IP ingress packet processing of the Cisco Embedded Wireless Controller with Catalyst Access Points Software that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.
How does CVE-2022-20622 affect Cisco Embedded Wireless Controller?
CVE-2022-20622 affects Cisco Embedded Wireless Controller with Catalyst Access Points Software, causing the device to reload unexpectedly and resulting in a denial of service (DoS) condition.
What is the severity of CVE-2022-20622?
The severity of CVE-2022-20622 is high with a CVSS score of 7.5.
Which versions of Cisco Aironet Access Point Software are affected by CVE-2022-20622?
Versions of Cisco Aironet Access Point Software 17.3 up to 17.3.4 and versions 17.4 up to 17.6.1 are affected by CVE-2022-20622.
How can I mitigate the vulnerability CVE-2022-20622?
To mitigate the vulnerability CVE-2022-20622, it is recommended to upgrade to a fixed software release as indicated in the Cisco Security Advisory.
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