Vulnerability Intelligence Report
Cisco Identity Services Engine Authentication Bypass Vulnerability
CVE-2026-76460
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.
CISA KEV
SSVC: Active Exploitation
Automatable
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:14.03%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-648 ↗Incorrect Use of Privileged APIs
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Cisco | Cisco Identity Services Engine Software | 3.1.0 p8 (affected), 3.1.0 p9 (affected), 3.3 Patch 2 (affected), 3.3 Patch 1 (affected), 3.3 Patch 3 (affected), 3.4.0 (affected), 3.2.0 p7 (affected), 3.3 Patch 4 (affected), 3.4 Patch 1 (affected), 3.1.0 p10 (affected), 3.3 Patch 5 (affected), 3.3 Patch 6 (affected), 3.4 Patch 2 (affected), 3.3 Patch 7 (affected), 3.4 Patch 3 (affected), 3.5.0 (affected), 3.4 Patch 4 (affected), 3.3 Patch 8 (affected), 3.2 Patch 8 (affected), 3.5 Patch 1 (affected), 3.3 Patch 9 (affected), 3.2 Patch 9 (affected), 3.4 Patch 5 (affected), 3.5 Patch 3 (affected), 3.5 Patch 2 (affected), 3.3 Patch 10 (affected), 3.3 Patch 11 (affected), 3.4 Patch 6 (affected), 3.2 Patch 10 (affected), 3.1.0 p11 (affected) |
| Cisco | Cisco ISE Passive Identity Connector | 3.4.0 (affected), 3.5.0 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Cisco Systems, Inc. · Hosted Service · USA |
| Reserved | 2026-08-19T12:02:03 |
| Published | 2026-09-16T20:12:02 |
| Last Updated | 2026-10-07T18:27:47 |
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