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 Software | Affected Version | How to fix |
|---|---|---|
| Puppet Cisco IOS | =15.4\(1\)cg | |
| Puppet Cisco IOS | =15.4\(2\)cg | |
| Puppet Cisco IOS | =15.4\(3\)m | |
| Puppet Cisco IOS | =15.4\(3\)m1 | |
| Puppet Cisco IOS | =15.4\(3\)m2 | |
| Puppet Cisco IOS | =15.4\(3\)m3 | |
| Puppet Cisco IOS | =15.4\(3\)m4 | |
| Puppet Cisco IOS | =15.4\(3\)m5 | |
| Puppet Cisco IOS | =15.4\(3\)m6 | |
| Puppet Cisco IOS | =15.4\(3\)m6a | |
| Puppet Cisco IOS | =15.4\(3\)m7 | |
| Puppet Cisco IOS | =15.4\(3\)m8 | |
| Puppet Cisco IOS | =15.4\(3\)m9 | |
| Puppet Cisco IOS | =15.4\(3\)m10 | |
| Puppet Cisco IOS | =15.5\(1\)t | |
| Puppet Cisco IOS | =15.5\(1\)t2 | |
| Puppet Cisco IOS | =15.5\(1\)t3 | |
| Puppet Cisco IOS | =15.5\(1\)t4 | |
| Puppet Cisco IOS | =15.5\(2\)t | |
| Puppet Cisco IOS | =15.5\(2\)t1 | |
| Puppet Cisco IOS | =15.5\(2\)t2 | |
| Puppet Cisco IOS | =15.5\(2\)t3 | |
| Puppet Cisco IOS | =15.5\(2\)t4 | |
| Puppet Cisco IOS | =15.5\(3\)m | |
| Puppet Cisco IOS | =15.5\(3\)m1 | |
| Puppet Cisco IOS | =15.5\(3\)m2 | |
| Puppet Cisco IOS | =15.5\(3\)m2a | |
| Puppet Cisco IOS | =15.5\(3\)m3 | |
| Puppet Cisco IOS | =15.5\(3\)m4 | |
| Puppet Cisco IOS | =15.5\(3\)m4a | |
| Puppet Cisco IOS | =15.5\(3\)m5 | |
| Puppet Cisco IOS | =15.5\(3\)m6 | |
| Puppet Cisco IOS | =15.5\(3\)m6a | |
| Puppet Cisco IOS | =15.5\(3\)m7 | |
| Puppet Cisco IOS | =15.5\(3\)m8 | |
| Puppet Cisco IOS | =15.5\(3\)m9 | |
| Puppet Cisco IOS | =15.5\(3\)m10 | |
| Puppet Cisco IOS | =15.6\(1\)t | |
| Puppet Cisco IOS | =15.6\(1\)t0a | |
| Puppet Cisco IOS | =15.6\(1\)t1 | |
| Puppet Cisco IOS | =15.6\(1\)t2 | |
| Puppet Cisco IOS | =15.6\(1\)t3 | |
| Puppet Cisco IOS | =15.6\(2\)t | |
| Puppet Cisco IOS | =15.6\(2\)t1 | |
| Puppet Cisco IOS | =15.6\(2\)t2 | |
| Puppet Cisco IOS | =15.6\(2\)t3 | |
| Puppet Cisco IOS | =15.6\(3\)m | |
| Puppet Cisco IOS | =15.6\(3\)m0a | |
| Puppet Cisco IOS | =15.6\(3\)m1 | |
| Puppet Cisco IOS | =15.6\(3\)m1b | |
| Puppet Cisco IOS | =15.6\(3\)m2 | |
| Puppet Cisco IOS | =15.6\(3\)m3 | |
| Puppet Cisco IOS | =15.6\(3\)m3a | |
| Puppet Cisco IOS | =15.6\(3\)m4 | |
| Puppet Cisco IOS | =15.6\(3\)m5 | |
| Puppet Cisco IOS | =15.6\(3\)m6 | |
| Puppet Cisco IOS | =15.6\(3\)m6a | |
| Puppet Cisco IOS | =15.6\(3\)m7 | |
| Puppet Cisco IOS | =15.6\(3\)m8 | |
| Puppet Cisco IOS | =15.7\(3\)m | |
| Puppet Cisco IOS | =15.7\(3\)m1 | |
| Puppet Cisco IOS | =15.7\(3\)m2 | |
| Puppet Cisco IOS | =15.7\(3\)m3 | |
| Puppet Cisco IOS | =15.7\(3\)m4 | |
| Puppet Cisco IOS | =15.7\(3\)m4a | |
| Puppet Cisco IOS | =15.7\(3\)m5 | |
| Puppet Cisco IOS | =15.7\(3\)m6 | |
| Puppet Cisco IOS | =15.8\(3\)m | |
| Puppet Cisco IOS | =15.8\(3\)m0a | |
| Puppet Cisco IOS | =15.8\(3\)m1 | |
| Puppet Cisco IOS | =15.8\(3\)m2 | |
| Puppet Cisco IOS | =15.8\(3\)m3a | |
| Puppet Cisco IOS | =15.8\(3\)m3b | |
| Puppet Cisco IOS | =15.8\(3\)m4 | |
| Puppet Cisco IOS | =15.8\(3\)m5 | |
| Puppet Cisco IOS | =15.8\(3\)m6 | |
| Puppet Cisco IOS | =15.8\(3\)m7 | |
| Puppet Cisco IOS | =15.9\(3\)m | |
| Puppet Cisco IOS | =15.9\(3\)m0a | |
| Puppet Cisco IOS | =15.9\(3\)m1 | |
| Puppet Cisco IOS | =15.9\(3\)m2 | |
| Puppet Cisco IOS | =15.9\(3\)m3 | |
| Puppet Cisco IOS | =15.9\(3\)m3a | |
| Puppet Cisco IOS | =15.9\(3\)m3b | |
| Puppet Cisco IOS | =15.9\(3\)m4 | |
| Puppet Cisco IOS | =15.9\(3\)m4a |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2022-20761?
CVE-2022-20761 has been rated as a high severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2022-20761?
To fix CVE-2022-20761, upgrade to the appropriate fixed release version of the Cisco IOS software listed in the advisory.
Who is at risk from CVE-2022-20761?
Devices running affected versions of Cisco IOS in the 1000 Series Connected Grid Router are at risk from CVE-2022-20761.
What can an attacker do with CVE-2022-20761?
An unauthenticated adjacent attacker can exploit CVE-2022-20761 to cause a denial of service condition on affected devices.
What versions are affected by CVE-2022-20761?
Versions 15.4 and 15.5 of Cisco IOS and their sub-versions are affected by CVE-2022-20761.
- agent/type
- agent/references
- agent/author
- agent/severity
- agent/title
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/weakness
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/cisco
- canonical/cisco ios
- version/cisco ios/15.4\(1\)cg
- version/cisco ios/15.4\(2\)cg
- version/cisco ios/15.4\(3\)m
- version/cisco ios/15.4\(3\)m1
- version/cisco ios/15.4\(3\)m2
- version/cisco ios/15.4\(3\)m3
- version/cisco ios/15.4\(3\)m4
- version/cisco ios/15.4\(3\)m5
- version/cisco ios/15.4\(3\)m6
- version/cisco ios/15.4\(3\)m6a
- version/cisco ios/15.4\(3\)m7
- version/cisco ios/15.4\(3\)m8
- version/cisco ios/15.4\(3\)m9
- version/cisco ios/15.4\(3\)m10
- version/cisco ios/15.5\(1\)t
- version/cisco ios/15.5\(1\)t2
- version/cisco ios/15.5\(1\)t3
- version/cisco ios/15.5\(1\)t4
- version/cisco ios/15.5\(2\)t
- version/cisco ios/15.5\(2\)t1
- version/cisco ios/15.5\(2\)t2
- version/cisco ios/15.5\(2\)t3
- version/cisco ios/15.5\(2\)t4
- version/cisco ios/15.5\(3\)m
- version/cisco ios/15.5\(3\)m1
- version/cisco ios/15.5\(3\)m2
- version/cisco ios/15.5\(3\)m2a
- version/cisco ios/15.5\(3\)m3
- version/cisco ios/15.5\(3\)m4
- version/cisco ios/15.5\(3\)m4a
- version/cisco ios/15.5\(3\)m5
- version/cisco ios/15.5\(3\)m6
- version/cisco ios/15.5\(3\)m6a
- version/cisco ios/15.5\(3\)m7
- version/cisco ios/15.5\(3\)m8
- version/cisco ios/15.5\(3\)m9
- version/cisco ios/15.5\(3\)m10
- version/cisco ios/15.6\(1\)t
- version/cisco ios/15.6\(1\)t0a
- version/cisco ios/15.6\(1\)t1
- version/cisco ios/15.6\(1\)t2
- version/cisco ios/15.6\(1\)t3
- version/cisco ios/15.6\(2\)t
- version/cisco ios/15.6\(2\)t1
- version/cisco ios/15.6\(2\)t2
- version/cisco ios/15.6\(2\)t3
- version/cisco ios/15.6\(3\)m
- version/cisco ios/15.6\(3\)m0a
- version/cisco ios/15.6\(3\)m1
- version/cisco ios/15.6\(3\)m1b
- version/cisco ios/15.6\(3\)m2
- version/cisco ios/15.6\(3\)m3
- version/cisco ios/15.6\(3\)m3a
- version/cisco ios/15.6\(3\)m4
- version/cisco ios/15.6\(3\)m5
- version/cisco ios/15.6\(3\)m6
- version/cisco ios/15.6\(3\)m6a
- version/cisco ios/15.6\(3\)m7
- version/cisco ios/15.6\(3\)m8
- version/cisco ios/15.7\(3\)m
- version/cisco ios/15.7\(3\)m1
- version/cisco ios/15.7\(3\)m2
- version/cisco ios/15.7\(3\)m3
- version/cisco ios/15.7\(3\)m4
- version/cisco ios/15.7\(3\)m4a
- version/cisco ios/15.7\(3\)m5
- version/cisco ios/15.7\(3\)m6
- version/cisco ios/15.8\(3\)m
- version/cisco ios/15.8\(3\)m0a
- version/cisco ios/15.8\(3\)m1
- version/cisco ios/15.8\(3\)m2
- version/cisco ios/15.8\(3\)m3a
- version/cisco ios/15.8\(3\)m3b
- version/cisco ios/15.8\(3\)m4
- version/cisco ios/15.8\(3\)m5
- version/cisco ios/15.8\(3\)m6
- version/cisco ios/15.8\(3\)m7
- version/cisco ios/15.9\(3\)m
- version/cisco ios/15.9\(3\)m0a
- version/cisco ios/15.9\(3\)m1
- version/cisco ios/15.9\(3\)m2
- version/cisco ios/15.9\(3\)m3
- version/cisco ios/15.9\(3\)m3a
- version/cisco ios/15.9\(3\)m3b
- version/cisco ios/15.9\(3\)m4
- version/cisco ios/15.9\(3\)m4a