CVE-2026-20241
Cisco Identity Services Engine Authorization Bypass Vulnerability
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
A vulnerability in the authorization mechanism of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an unauthenticated, remote attacker to obtain an endpoint identity certificate. This vulnerability is due to improper authorization checks. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to bypass authorization to obtain an endpoint certificate.
| CWE | CWE-285 |
| Vendor | cisco |
| Product | cisco identity services engine software |
| Ecosystems | |
| Industries | NetworkingTelecommunications |
| Published | Nov 4, 2026 |
| Last Updated | Nov 4, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Cisco / Cisco Identity Services Engine Software
3.1.0 3.1.0 p1 3.1.0 p3 3.1.0 p2 3.2.0 3.1.0 p4 3.1.0 p5 3.2.0 p1 3.1.0 p6 3.2.0 p2 3.1.0 p7 3.3.0 3.2.0 p3 3.2.0 p4 3.1.0 p8 3.2.0 p5 3.2.0 p6 3.1.0 p9 3.3 Patch 2 3.3 Patch 1 3.3 Patch 3 3.4.0 3.2.0 p7 3.3 Patch 4 3.4 Patch 1 3.1.0 p10 3.3 Patch 5 3.3 Patch 6 3.4 Patch 2 3.3 Patch 7 3.4 Patch 3 3.5.0 3.4 Patch 4 3.3 Patch 8 3.2 Patch 8 3.5 Patch 1 3.3 Patch 9 3.2 Patch 9 3.4 Patch 5 3.5 Patch 3 3.5 Patch 2 3.3 Patch 10 3.3 Patch 11 3.4 Patch 6 3.2 Patch 10 3.1.0 p11
Cisco / Cisco ISE Passive Identity Connector
3.2.0 3.1.0 3.3.0 3.4.0 3.5.0