cisco-sa-ise-radsupress-dos-8YF3JThh: Cisco Identity Services Engine RADIUS Suppression Denial of Service Vulnerability

Published Nov 5, 2025
·
Updated

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.

Affected Software

1 affected component
Cisco Identity Services Engine

Event History

Nov 5, 2025
Advisory Published
via Cisco·04:00 PM
Data Sourced
via Cisco·04:00 PM
DescriptionSeverityWeakness

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of cisco-sa-ise-radsupress-dos-8YF3JThh?

The severity of cisco-sa-ise-radsupress-dos-8YF3JThh has been classified as critical.

2

How do I fix cisco-sa-ise-radsupress-dos-8YF3JThh?

To fix cisco-sa-ise-radsupress-dos-8YF3JThh, apply the latest patches or updates provided by Cisco for the Identity Services Engine.

3

What impacts does cisco-sa-ise-radsupress-dos-8YF3JThh have on Cisco Identity Services Engine?

cisco-sa-ise-radsupress-dos-8YF3JThh may cause Cisco Identity Services Engine to restart unexpectedly, leading to temporary service disruptions.

4

Who is affected by cisco-sa-ise-radsupress-dos-8YF3JThh?

All deployments of Cisco Identity Services Engine that utilize the RADIUS functionality are affected by cisco-sa-ise-radsupress-dos-8YF3JThh.

5

Is authentication required to exploit cisco-sa-ise-radsupress-dos-8YF3JThh?

No authentication is required to exploit cisco-sa-ise-radsupress-dos-8YF3JThh, making it easier for an unauthenticated attacker to cause a denial of service.

Contact

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