Name: CVE-2022-20731: Incorrect Register Defaults or Module Parameters
Creator: Rapid7
Published: 2022-04-15T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2022-20731, CWE-1221, CWE-665, CVSS 4.6, EPSS 0.00245

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.

CVSS Details

CVSS 3.1 Base Score: 4.6
CVSS 3.1 Vector: (CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Cisco Ios	—	Upgrade to the latest version of Cisco IOS to resolve this vulnerability	Jan 27, 2026	Apr 13, 2022

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CVSS Details

Covered by Rapid7

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