CVSS 3.1 Score 5.8 of 10 (medium)


Published Jan 26, 2024
Updated: Feb 6, 2024
CWE ID 284


CVE-2024-20263 is a vulnerability that affects the access control list (ACL) management within a stacked switch configuration of Cisco Business 250 Series Smart Switches and Business 350 Series Managed Switches. An unauthenticated, remote attacker could exploit this vulnerability to bypass the protection offered by a configured ACL on an affected device. The vulnerability occurs when either the primary or backup switches in the stacked configuration experience a full stack reload or power cycle, causing incorrect processing of ACLs. This could allow the attacker to send crafted traffic through the device and bypass configured ACLs, potentially causing traffic to be dropped or forwarded unexpectedly. The vulnerability poses a medium risk with a base severity score of 5.8 out of 10. Cisco has not provided specific remediation steps in the available information.

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