CVE-2022-20945

HIGH

Cisco Catalyst 9800-l Firmware < 17.6.4 - Improper Input Validation

Title source: rule
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 7.4
EPSS 0.0011
EPSS Percentile 28.3%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-20 CWE-120
Status published
Products (4)
cisco/catalyst_9800-40_firmware 17.6 - 17.6.4
cisco/catalyst_9800-80_firmware 17.6 - 17.6.4
cisco/catalyst_9800-cl_firmware 17.6 - 17.6.4
cisco/catalyst_9800-l_firmware 17.6 - 17.6.4
Published Sep 30, 2022
Tracked Since Feb 18, 2026