Is CVE-2024-20251 being actively exploited?

CVE-2024-20251 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2024-20251?

CVE-2024-20251 has a CVSS 3.1 base score of 4.8 (MEDIUM).

CVE-2024-20251

MEDIUM · CVSS 4.8EPSS 0.4%EU EUVD

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to perform a stored cross-site scripting (XSS) attack against a user of the interface on an affected device. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Key facts

CVSS score: 4.8 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
EPSS score: 0.4% (28th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2024-17966)
Published: January 17, 2024
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2024-17966 in the EU Vulnerability Database. Last updated in EUVD on October 21, 2024.

View on the EU Vulnerability Database

Affected products

cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
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and 158 more…

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Cisco ISE v2.0 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-10795-2017 - archived
Cisco Identity Services Engine (ISE) v1.2 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-10521-2014 - archived

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ISE-XSS-bL4VTML(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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