Identity Services Engine
CVE-2025-20264: Cisco Identity Services Engine Authorization Bypass Vulnerability
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.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Cisco Identity Services Engine Software 3.0 | See the advisory |
| Cisco Identity Services Engine Software 3.0 | See the advisory |
| Cisco Identity Services Engine Software 3.0 | See the advisory |
| Cisco Identity Services Engine Software 3.0 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.0 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.0 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.0 | See the advisory |
| Cisco Identity Services Engine Software 3.2 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.2 | See the advisory |
| Cisco Identity Services Engine Software 3.0 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.2 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.3 | See the advisory |
| Cisco Identity Services Engine Software 3.2 | See the advisory |
| Cisco Identity Services Engine Software 3.0 | See the advisory |
| Cisco Identity Services Engine Software 3.2 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.2 | See the advisory |
| Cisco Identity Services Engine Software 3.2 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
| Cisco Identity Services Engine Software 3.3 Patch 2 | See the advisory |
| Cisco Identity Services Engine Software 3.3 Patch 1 | See the advisory |
| Cisco Identity Services Engine Software 3.3 Patch 3 | See the advisory |
| Cisco Identity Services Engine Software 3.4 | See the advisory |
| Cisco Identity Services Engine Software 3.2 | See the advisory |
| Cisco Identity Services Engine Software 3.3 Patch 4 | See the advisory |
| Cisco Identity Services Engine Software 3.4 Patch 1 | See the advisory |
| Cisco Identity Services Engine Software 3.1 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Exploitation
The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.