CVE-2022-20914: A vulnerability in the External RESTful Services (ERS) API of Cisco Identity Services Engine (ISE) Software could allow an authenticated, remote attac...

Description

A vulnerability in the External RESTful Services (ERS) API of Cisco Identity Services Engine (ISE) Software could allow an authenticated, remote attacker to obtain sensitive information. This vulnerability is due to excessive verbosity in a specific REST API output. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to obtain sensitive information, including administrative credentials for an external authentication server. Note: To successfully exploit this vulnerability, the attacker must have valid ERS administrative credentials.

Metrics

CVSS 3.1

4.9/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.80%

52.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Identity Services Engine	>= 2.4.0, < 2.6.0
Cisco	Identity Services Engine	2.6.0
Cisco	Identity Services Engine	2.7.0
Cisco	Identity Services Engine	3.0.0
Cisco	Identity Services Engine	3.1

References

Timeline

Published: Aug 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-20914?

A vulnerability in the External RESTful Services (ERS) API of Cisco Identity Services Engine (ISE) Software could allow an authenticated, remote attacker to obtain sensitive information. This vulnerability is due to excessive verbosity in a specific REST API output. An attacker could exploit this vulnerability by sending a crafted HTTP request to the affected device. A successful exploit could allow the attacker to obtain sensitive information, including administrative credentials for an external authentication server. Note: To successfully exploit this vulnerability, the attacker must have valid ERS administrative credentials.

How severe is CVE-2022-20914?

CVE-2022-20914 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2022-20914?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.