7.4
CWE
20 248
Advisory Published
Updated

CVE-2022-20761: Cisco 1000 Series Connected Grid Router Integrated Wireless Access Point Denial of Service Vulnerability

First published: Fri Apr 15 2022(Updated: )

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. 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.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS=15.4\(1\)cg
Cisco IOS=15.4\(2\)cg
Cisco IOS=15.4\(3\)m
Cisco IOS=15.4\(3\)m1
Cisco IOS=15.4\(3\)m2
Cisco IOS=15.4\(3\)m3
Cisco IOS=15.4\(3\)m4
Cisco IOS=15.4\(3\)m5
Cisco IOS=15.4\(3\)m6
Cisco IOS=15.4\(3\)m6a
Cisco IOS=15.4\(3\)m7
Cisco IOS=15.4\(3\)m8
Cisco IOS=15.4\(3\)m9
Cisco IOS=15.4\(3\)m10
Cisco IOS=15.5\(1\)t
Cisco IOS=15.5\(1\)t2
Cisco IOS=15.5\(1\)t3
Cisco IOS=15.5\(1\)t4
Cisco IOS=15.5\(2\)t
Cisco IOS=15.5\(2\)t1
Cisco IOS=15.5\(2\)t2
Cisco IOS=15.5\(2\)t3
Cisco IOS=15.5\(2\)t4
Cisco IOS=15.5\(3\)m
Cisco IOS=15.5\(3\)m1
Cisco IOS=15.5\(3\)m2
Cisco IOS=15.5\(3\)m2a
Cisco IOS=15.5\(3\)m3
Cisco IOS=15.5\(3\)m4
Cisco IOS=15.5\(3\)m4a
Cisco IOS=15.5\(3\)m5
Cisco IOS=15.5\(3\)m6
Cisco IOS=15.5\(3\)m6a
Cisco IOS=15.5\(3\)m7
Cisco IOS=15.5\(3\)m8
Cisco IOS=15.5\(3\)m9
Cisco IOS=15.5\(3\)m10
Cisco IOS=15.6\(1\)t
Cisco IOS=15.6\(1\)t0a
Cisco IOS=15.6\(1\)t1
Cisco IOS=15.6\(1\)t2
Cisco IOS=15.6\(1\)t3
Cisco IOS=15.6\(2\)t
Cisco IOS=15.6\(2\)t1
Cisco IOS=15.6\(2\)t2
Cisco IOS=15.6\(2\)t3
Cisco IOS=15.6\(3\)m
Cisco IOS=15.6\(3\)m0a
Cisco IOS=15.6\(3\)m1
Cisco IOS=15.6\(3\)m1b
Cisco IOS=15.6\(3\)m2
Cisco IOS=15.6\(3\)m3
Cisco IOS=15.6\(3\)m3a
Cisco IOS=15.6\(3\)m4
Cisco IOS=15.6\(3\)m5
Cisco IOS=15.6\(3\)m6
Cisco IOS=15.6\(3\)m6a
Cisco IOS=15.6\(3\)m7
Cisco IOS=15.6\(3\)m8
Cisco IOS=15.7\(3\)m
Cisco IOS=15.7\(3\)m1
Cisco IOS=15.7\(3\)m2
Cisco IOS=15.7\(3\)m3
Cisco IOS=15.7\(3\)m4
Cisco IOS=15.7\(3\)m4a
Cisco IOS=15.7\(3\)m5
Cisco IOS=15.7\(3\)m6
Cisco IOS=15.8\(3\)m
Cisco IOS=15.8\(3\)m0a
Cisco IOS=15.8\(3\)m1
Cisco IOS=15.8\(3\)m2
Cisco IOS=15.8\(3\)m3a
Cisco IOS=15.8\(3\)m3b
Cisco IOS=15.8\(3\)m4
Cisco IOS=15.8\(3\)m5
Cisco IOS=15.8\(3\)m6
Cisco IOS=15.8\(3\)m7
Cisco IOS=15.9\(3\)m
Cisco IOS=15.9\(3\)m0a
Cisco IOS=15.9\(3\)m1
Cisco IOS=15.9\(3\)m2
Cisco IOS=15.9\(3\)m3
Cisco IOS=15.9\(3\)m3a
Cisco IOS=15.9\(3\)m3b
Cisco IOS=15.9\(3\)m4
Cisco IOS=15.9\(3\)m4a

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