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.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-16022 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 11 Jul 2025 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Cisco
Cisco identity Services Engine
CPEs cpe:2.3:a:cisco:identity_services_engine:3.4.0:*:*:*:*:*:*:*
Vendors & Products Cisco
Cisco identity Services Engine

Wed, 21 May 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 21 May 2025 16:30:00 +0000

Type Values Removed Values Added
Description 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.
Title ISE restart
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2025-05-21T19:27:50.972Z

Reserved: 2024-10-10T19:15:13.216Z

Link: CVE-2025-20152

cve-icon Vulnrichment

Updated: 2025-05-21T19:27:47.115Z

cve-icon NVD

Status : Analyzed

Published: 2025-05-21T17:15:56.010

Modified: 2025-07-11T15:22:26.593

Link: CVE-2025-20152

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.