CVE-2025-20152

published 2025-05-21

CVE-2025-20152: A vulnerability in the RADIUS message processing feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause a…

Priority P3 53 high 8.6 CVSS 3.1

AV N AC L PR N UI N S C C N I N A H

A vulnerability in the RADIUS message processing feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

This vulnerability is due to improper handling of certain RADIUS requests. An attacker could exploit this vulnerability by sending a specific authentication request to a network access device (NAD) that uses Cisco ISE for authentication, authorization, and accounting (AAA). A successful exploit could allow the attacker to cause Cisco ISE to reload.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_identity_services_engine_software	—	—
cisco	identity_services_engine	—	—
cisco	identity_services_engine_radius	—	—

CVSS provenance

nvd v3.1 8.6 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

vendor_cisco 8.6 HIGH

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