CVE-2025-20152: ISE restart

Published May 21, 2025
·
Updated

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 Software

2 affected components
Cisco Identity Services Engine
Cisco Identity Services Engine=3.4.0

Event History

May 21, 2025
CVE Published
via MITRE·04:19 PM
Data Sourced
via MITRE·04:19 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-20152?

CVE-2025-20152 has a high severity rating due to its potential to cause a denial of service condition.

2

How do I fix CVE-2025-20152?

To fix CVE-2025-20152, update the Cisco Identity Services Engine to the latest version provided by Cisco.

3

Who is affected by CVE-2025-20152?

The vulnerability affects devices running Cisco Identity Services Engine (ISE) due to improper RADIUS message handling.

4

Can CVE-2025-20152 be exploited remotely?

Yes, CVE-2025-20152 can be exploited by unauthenticated remote attackers.

5

What are the consequences of CVE-2025-20152 exploitation?

Exploitation of CVE-2025-20152 can lead to a denial of service, disrupting services on the affected Cisco ISE device.

Contact

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