CVSS 3.1 Score 8.6 of 10 (high)


Published Sep 6, 2023
Updated: Jan 25, 2024
CWE ID 755
CWE ID 399


CVE-2023-20243 is a vulnerability in the RADIUS message processing feature of Cisco Identity Services Engine (ISE). It affects various products including osX0wW, nDKo5n, tVhU56, ojKXMk, r0KAJ6, r0KAJ4, r0KAJ5, nDKo5o, tVhU6R, and ijBNpD. The vulnerability allows an unauthenticated remote attacker to cause the affected system to stop processing RADIUS packets. This vulnerability is caused by improper handling of certain RADIUS accounting requests. To remediate this vulnerability, organizations should apply the necessary patches or upgrades provided by Cisco. If exploited successfully, this vulnerability could result in authentication or authorization timeouts and deny legitimate users access to the network or service.

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