Medium severity4.6NVD Advisory· Published Apr 15, 2022· Updated Jun 17, 2026

CVE-2022-20661

Description

Multiple vulnerabilities that affect Cisco Catalyst Digital Building Series Switches and Cisco Catalyst Micro Switches could allow an attacker to execute persistent code at boot time or to permanently prevent the device from booting, resulting in a permanent denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cisco Systems, Inc./Catalyst Switchesllm-fuzzy
Cisco Systems, Inc./Catalyst Digital Building Series Switchesllm-fuzzy
Cisco Systems, Inc./Cisco IOS XE Softwarecpe-rescue
Range: n/a

Patches

Vulnerability mechanics

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cdb-cmicr-vulns-KJjFtNbnvdVendor Advisory

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