Cisco 1000 Series Connected Grid Router Integrated Wireless Access Point Denial of Service Vulnerability<p>A vulnerability in the integrated wireless access point (AP) packet processing of the Cisco 1000 Series Connected Grid Router (CGR1K) could allow an unauthenticated, adjacent attacker to cause a denial of service condition on an affected device.</p>
<p>This vulnerability is due to insufficient input validation of received traffic. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to cause the integrated AP to stop processing traffic, resulting in a DoS condition. It may be necessary to manually reload the CGR1K to restore AP operation.</p>
<p>Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.</p>
<p>This advisory is available at the following link:<br><a href="https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cgr1k-ap-dos-mSZR4QVh">https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cgr1k-ap-dos-mSZR4QVh</a></p>
<p>This advisory is part of the April 2022 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see <a href="https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74561">Cisco Event Response: April 2022 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.</a></p>
Security Impact Rating: High
CVE: CVE-2022-20761
Source: Cisco 1000 Series Connected Grid Router Integrated Wireless Access Point Denial of Service Vulnerability (https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cgr1k-ap-dos-mSZR4QVh?vs_f=Cisco%20Security%20Advisory&vs_cat=Security%20Intelligence&vs_type=RSS&vs_p=Cisco%201000%20Series%20Connected%20Grid%20Router%20Integrated%20Wireless%20Access%20Point%20Denial%20of%20Service%20Vulnerability&vs_k=1)