Is CVE-2025-20264 being actively exploited?

CVE-2025-20264 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2025-20264?

CVE-2025-20264 has a CVSS 3.1 base score of 6.4 (MEDIUM).

CVE-2025-20264

MEDIUM · CVSS 6.4EPSS 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 bypass the authorization mechanisms for specific administrative functions. This vulnerability is due to insufficient authorization enforcement mechanisms for users created by SAML SSO integration with an external identity provider. An attacker could exploit this vulnerability by submitting a series of specific commands to an affected device. A successful exploit could allow the attacker to modify a limited number of system settings, including some that would result in a system restart. In single-node Cisco ISE deployments, devices that are not authenticated to the network will not be able to authenticate until the Cisco ISE system comes back online. 

Key facts

CVSS score: 6.4 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L
Weakness (CWE): CWE-285
EPSS score: 0.4% (28th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2025-19235)
Published: June 25, 2025
NVD last modified: June 17, 2026
Status: Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2025-19235 in the EU Vulnerability Database. Last updated in EUVD on June 26, 2025.

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
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine
cisco / identity services engine

Certified products that may be affected

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

Cisco Identity Services Engine (ISE) V3.3 - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-11517-2025 - active

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-auth-bypass-mVfKVQAU(Vendor Advisory)

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

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