Cisco ISE Unauth Remote Info Disclosure via Improper Auth Check
CVE-2026-20190 Published on June 17, 2026

Cisco Identity Services Engine Information Disclosure Vulnerability
A vulnerability in Cisco ISE and ISE-PIC could allow an unauthenticated, remote attacker to view sensitive information on an affected device. This vulnerability is due to improper authorization checks when a resource is accessed. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to sensitive information, including hashed credentials that could be used in future attacks.

NVD

Vulnerability Analysis

CVE-2026-20190 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
NONE
Availability Impact:
NONE

Weakness Type

What is an AuthZ Vulnerability?

The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

CVE-2026-20190 has been classified to as an AuthZ vulnerability or weakness.


Products Associated with CVE-2026-20190

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Cisco Identity Services Engine Software
 

Affected Versions

Cisco Identity Services Engine Software: Cisco ISE Passive Identity Connector: