VULNERABILITY INTELLIGENCE

CVE-2026-20195

CVSS score5.3 MEDIUM
EPSS probability0.27%
CISA KEVNot currently listed
Published2026-05-06
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

A vulnerability in an identity management API endpoint of Cisco ISE could allow an unauthenticated, remote attacker to enumerate valid user accounts on an affected device. This vulnerability exists because error messages are observed when the affected API endpoint is called. An attacker could exploit this vulnerability by sending a series of crafted requests to the affected endpoint and analyzing the differentiated responses. A successful exploit could allow the attacker to compile a list of valid usernames on an affected system.

Weakness classification

  • psirt@cisco.com: CWE-204

Primary references