Vulnerability details
CVE-2026-76460
Actively exploited
Cisco ISE Passive Identity ConnectorCisco Identity Services Engine Software
Cisco Identity Services Engine Authentication Bypass Vulnerability
CVSS 3.1
10.0Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 10.0Critical | 3.1 | CVEProject cvelistV5 (CNA) (cisco) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Cisco | Cisco ISE Passive Identity Connector | 3.4.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco ISE Passive Identity Connector | 3.5.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.1.0 p10 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.1.0 p11 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.1.0 p8 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.1.0 p9 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.2 Patch 10 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.2 Patch 8 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.2 Patch 9 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.2.0 p7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 10 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 11 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 6 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 7 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 8 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.3 Patch 9 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.4 Patch 1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.4 Patch 2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.4 Patch 3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.4 Patch 4 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.4 Patch 5 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.4 Patch 6 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.4.0 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.5 Patch 1 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.5 Patch 2 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.5 Patch 3 | CVEProject cvelistV5 (CNA) |
| Cisco | Cisco Identity Services Engine Software | 3.5.0 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-09-16
- Last updated
- 2026-10-07
- State
- Published
- Assigner (CNA)
- cisco
- Kolun priority
- 90 · Critical
CISA KEV catalog
- Date added
- 2026-09-16
- Due date
- 2026-09-19
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
75.59%
Probability of exploitation in 30 days
99.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-648Incorrect Use of Privileged APIs