CVE-2026-76460
Cisco Identity Services Engine Authentication Bypass Vulnerability
Severity
Critical 10
CVSS 3.1
Exploited
Yes — in CISA KEV
Added Sep 16, 2026
EPSS
0.008
54.6th percentile
Discovered by
Third party
Vendor-published field
Published
Sep 16, 2026
Assigned by cisco
Description
A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication. This vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.
Weakness: CWE-648
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco ISE Passive Identity Connector | Identity / IAM / MFA | cna-assigner |
| Cisco | Cisco Identity Services Engine (ISE) | Identity / IAM / MFA | cna-assigner |
Vendor-reported products (2)
- Cisco · Cisco Identity Services Engine Software
- Cisco · Cisco ISE Passive Identity Connector