Medium severity · published Sep 30, 2022
CVE-2022-20945
Cisco Catalyst 9100 Series Access Points Association Request Denial of Service Vulnerability
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CA
Cisco Aironet Access Point Software (IOS XE Controller) · Cisco
All versions, or not specified · source: vendor
C9
Catalyst 9800-40 Firmware · Cisco
17.6 before 17.6.4 · source: NVD
C9
Catalyst 9800-80 Firmware · Cisco
17.6 before 17.6.4 · source: NVD
C9
Catalyst 9800-cl Firmware · Cisco
17.6 before 17.6.4 · source: NVD
C9
Catalyst 9800-l Firmware · Cisco
17.6 before 17.6.4 · source: NVD
Affected product
CA
Cisco Aironet Access Point Software (IOS XE Controller)
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-20945
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-20945
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ap-assoc-dos-EgVqtON8
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