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.
Published: 2025-05-21
Score: 8.6 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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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.
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'}


Subscriptions

Cisco Identity Services Engine
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.

Weaknesses