CVE-2022-20945: Cisco Catalyst 9100 Series Access Points Association Request Denial of Service Vulnerability
First published: Wed Sep 28 2022(Updated: )
A vulnerability in the 802.11 association frame validation of Cisco Catalyst 9100 Series Access Points (APs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of certain parameters within association request frames received by the AP. An attacker could exploit this vulnerability by sending a crafted 802.11 association request to a nearby device. An exploit could allow the attacker to unexpectedly reload the device, resulting in a DoS condition.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Catalyst 9800-l Firmware | >=17.6<17.6.4 | |
| Cisco Catalyst 9800-l | ||
| Cisco Catalyst 9800-40 Firmware | >=17.6<17.6.4 | |
| Cisco Catalyst 9800-40 | ||
| Cisco Catalyst 9800-80 Firmware | >=17.6<17.6.4 | |
| Cisco Catalyst 9800-80 | ||
| Cisco Catalyst 9800-cl Firmware | >=17.6<17.6.4 | |
| Cisco Catalyst 9800-cl |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2022-20945.
What is the severity of CVE-2022-20945?
The severity of CVE-2022-20945 is high.
How can an attacker exploit CVE-2022-20945?
An attacker can exploit CVE-2022-20945 by sending malicious 802.11 association frames to a vulnerable Cisco Catalyst 9100 Series Access Point.
Is there a fix available for CVE-2022-20945?
Yes, Cisco has released a software update to address the vulnerability. Refer to the Cisco Security Advisory for more information.
Where can I find more information about CVE-2022-20945?
You can find more information about CVE-2022-20945 in the Cisco Security Advisory.
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- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/author
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- vendor/cisco
- canonical/cisco catalyst 9800-l firmware
- version/cisco catalyst 9800-l firmware/17.6
- canonical/cisco catalyst 9800-l
- canonical/cisco catalyst 9800-40 firmware
- version/cisco catalyst 9800-40 firmware/17.6
- canonical/cisco catalyst 9800-40
- canonical/cisco catalyst 9800-80 firmware
- version/cisco catalyst 9800-80 firmware/17.6
- canonical/cisco catalyst 9800-80
- canonical/cisco catalyst 9800-cl firmware
- version/cisco catalyst 9800-cl firmware/17.6
- canonical/cisco catalyst 9800-cl