CVE-2026-20287
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Vulnerability report for CVE-2026-20287, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-16
Last updated on: 2026-09-18
Assigner: Cisco Systems, Inc.
Description
Description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) engineering teams have conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.
The vulnerabilities tracked by CVE-2026-20287 are related to improper privilege managment issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-269.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Cisco | Cisco | Identity Services Engine Software 3.1.0 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p1 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p3 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p2 |
| Cisco | Cisco | Identity Services Engine Software 3.2.0 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p4 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p5 |
| Cisco | Cisco | Identity Services Engine Software 3.2.0 p1 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p6 |
| Cisco | Cisco | Identity Services Engine Software 3.2.0 p2 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p7 |
| Cisco | Cisco | Identity Services Engine Software 3.3.0 |
| Cisco | Cisco | Identity Services Engine Software 3.2.0 p3 |
| Cisco | Cisco | Identity Services Engine Software 3.2.0 p4 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p8 |
| Cisco | Cisco | Identity Services Engine Software 3.2.0 p5 |
| Cisco | Cisco | Identity Services Engine Software 3.2.0 p6 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p9 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 2 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 1 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 3 |
| Cisco | Cisco | Identity Services Engine Software 3.4.0 |
| Cisco | Cisco | Identity Services Engine Software 3.2.0 p7 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 4 |
| Cisco | Cisco | Identity Services Engine Software 3.4 Patch 1 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p10 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 5 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 6 |
| Cisco | Cisco | Identity Services Engine Software 3.4 Patch 2 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 7 |
| Cisco | Cisco | Identity Services Engine Software 3.4 Patch 3 |
| Cisco | Cisco | Identity Services Engine Software 3.5.0 |
| Cisco | Cisco | Identity Services Engine Software 3.4 Patch 4 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 8 |
| Cisco | Cisco | Identity Services Engine Software 3.2 Patch 8 |
| Cisco | Cisco | Identity Services Engine Software 3.5 Patch 1 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 9 |
| Cisco | Cisco | Identity Services Engine Software 3.2 Patch 9 |
| Cisco | Cisco | Identity Services Engine Software 3.4 Patch 5 |
| Cisco | Cisco | Identity Services Engine Software 3.5 Patch 3 |
| Cisco | Cisco | Identity Services Engine Software 3.5 Patch 2 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 10 |
| Cisco | Cisco | Identity Services Engine Software 3.3 Patch 11 |
| Cisco | Cisco | Identity Services Engine Software 3.4 Patch 6 |
| Cisco | Cisco | Identity Services Engine Software 3.2 Patch 10 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p72 |
| Cisco | Cisco | Identity Services Engine Software 3.1.0 p11 |
| Cisco | Cisco | ISE Passive Identity Connector 3.2.0 |
| Cisco | Cisco | ISE Passive Identity Connector 3.1.0 |
| Cisco | Cisco | ISE Passive Identity Connector 3.3.0 |
| Cisco | Cisco | ISE Passive Identity Connector 3.4.0 |
| Cisco | Cisco | ISE Passive Identity Connector 3.5.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-269 | The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. |
