CVE-2021-40121: Cisco Identity Services Engine Cross-Site Scripting Vulnerabilities

Published Oct 21, 2021
·
Updated

Multiple vulnerabilities in the web-based management interface of Cisco Identity Services Engine (ISE) Software could allow an attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. For more information about these vulnerabilities, see the Details section of this advisory.

Affected Software

26 affected components
Cisco Identity Services Engine<=2.6
Cisco Identity Services Engine=2.6\(0.156\)
Cisco Identity Services Engine=2.6\(0.999\)
Cisco Identity Services Engine=2.6.0
Cisco Identity Services Engine=2.6.0-patch1
Cisco Identity Services Engine=2.6.0-patch2
Cisco Identity Services Engine=2.6.0-patch3
Cisco Identity Services Engine=2.6.0-patch5
Cisco Identity Services Engine=2.6.0-patch6
Cisco Identity Services Engine=2.6.0-patch7
Cisco Identity Services Engine=2.6.0-patch8
Cisco Identity Services Engine=2.6.0-patch9
Cisco Identity Services Engine=2.7
Cisco Identity Services Engine=2.7\(0.207\)
Cisco Identity Services Engine=2.7\(0.356\)
Cisco Identity Services Engine=2.7\(0.356\)
Cisco Identity Services Engine=2.7\(0.903\)
Cisco Identity Services Engine=2.7.0
Cisco Identity Services Engine=2.7.0-patch1
Cisco Identity Services Engine=2.7.0-patch2
Cisco Identity Services Engine=2.7.0-patch3
Cisco Identity Services Engine=2.7.0-patch4
Cisco Identity Services Engine=3.0\(0.458\)
Cisco Identity Services Engine=3.0.0
Cisco Identity Services Engine=3.0.0-patch1
Cisco Identity Services Engine=3.0.0-patch2

Event History

Oct 21, 2021
CVE Published
via MITRE·02:50 AM
Data Sourced
via MITRE·02:50 AM
DescriptionSeverityWeakness

Frequently Asked Questions

1

What is CVE-2021-40121?

CVE-2021-40121 is a vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) Software that could allow an attacker to conduct a cross-site scripting (XSS) attack against a user of the interface.

2

What is the severity of CVE-2021-40121?

The severity of CVE-2021-40121 is medium with a CVSS score of 4.8.

3

How does CVE-2021-40121 affect Cisco Identity Services Engine?

CVE-2021-40121 affects multiple versions of Cisco Identity Services Engine (ISE) Software, including version 2.6 and 2.7.

4

What is the Common Weakness Enumeration (CWE) ID for CVE-2021-40121?

The CWE ID for CVE-2021-40121 is CWE-79, which represents cross-site scripting (XSS) vulnerabilities.

5

How can I fix CVE-2021-40121?

To fix CVE-2021-40121, it is recommended to upgrade to a fixed version of Cisco Identity Services Engine (ISE) Software.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203