CVE-2025-20343

Cisco Identity Services Engine (ISE) contains a logic error in RADIUS processing for MAC addresses that are already rejected, which could allow an unauthenticated, remote attacker to cause ISE to restart and trigger a DoS. The vulnerability affects Cisco ISE RADIUS handling and can be exploited b...

CVE-2025-20343 Cisco Identity Services Engine Radius Suppression Denial of Service Vulnerability

A vulnerability in the RADIUS setting Reject RADIUS requests from clients with repeated failures on Cisco Identity Services Engine ISE could allow an unauthenticated, remote attacker to cause Cisco ISE to restart unexpectedly. This vulnerability is due to a logic error when processing a RADIUS...