Improper Authorization in Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC) - CVE-2026-20190

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Main Vulnerability Database Vulnerabilities #VU134761

Improper Authorization in Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC) - CVE-2026-20190

Published: June 17, 2026


Vulnerability identifier: #VU134761
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-20190
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Identity Services Engine (ISE)
ISE Passive Identity Connector (ISE-PIC)

Detailed vulnerability description

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to improper access control in a resource when accessing the resource. A remote attacker can send crafted traffic to disclose sensitive information.

Exposed information may include hashed credentials that could be used in future attacks.


How to mitigate CVE-2026-20190

Install security update from vendor's website.

Sources