CVE-2026-20192: Improper Access Control in Cisco Cisco Identity Services Engine Software
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-2026-20192 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.
AI Analysis
Technical Summary
Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC) contain improper access control vulnerabilities grouped under CWE-284. These issues were identified through Cisco's internal security review and addressed in a software hardening release. The vulnerability affects specific versions 3.1.0 through 3.5.0 of Cisco ISE software. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H) indicates network attack vector, low attack complexity, no privileges or user interaction required, with complete impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability could allow unauthenticated remote attackers to bypass access controls, leading to full system compromise including total loss of confidentiality, integrity, and availability of the affected Cisco ISE systems.
Mitigation Recommendations
Cisco has released a software hardening update addressing these vulnerabilities. Users should apply the official patches or updates provided by Cisco for affected versions 3.1.0, 3.2.0, 3.3.0, 3.4.0, and 3.5.0. Since this is not a cloud service, remediation depends on user action to update the software. Patch status is not explicitly confirmed in the provided data; users should consult Cisco's official advisory for the latest patch and remediation guidance.
CVE-2026-20192: Improper Access Control in Cisco Cisco Identity Services Engine Software
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-2026-20192 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.
CVSS v3.1
Score 10.0critical
Affected software
Cisco
Cisco Identity Services Engine Software
Cisco
Cisco ISE Passive Identity Connector
pkg:github/cisco/identity-services-engineRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC) contain improper access control vulnerabilities grouped under CWE-284. These issues were identified through Cisco's internal security review and addressed in a software hardening release. The vulnerability affects specific versions 3.1.0 through 3.5.0 of Cisco ISE software. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H) indicates network attack vector, low attack complexity, no privileges or user interaction required, with complete impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability could allow unauthenticated remote attackers to bypass access controls, leading to full system compromise including total loss of confidentiality, integrity, and availability of the affected Cisco ISE systems.
Mitigation Recommendations
Cisco has released a software hardening update addressing these vulnerabilities. Users should apply the official patches or updates provided by Cisco for affected versions 3.1.0, 3.2.0, 3.3.0, 3.4.0, and 3.5.0. Since this is not a cloud service, remediation depends on user action to update the software. Patch status is not explicitly confirmed in the provided data; users should consult Cisco's official advisory for the latest patch and remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2025-10-08T11:59:15.395Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaaf94155bf5e2cf51b934c
Added to database: 09/16/2026, 20:17:05 UTC
Last enriched: 09/16/2026, 20:33:29 UTC
Last updated: 09/17/2026, 01:28:54 UTC
Views: 5
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