Auth bypass in Cisco Identity Services Engine Software

CVE-2026-20072

A vulnerability in the web-based management interface of Cisco ISE could allow an authenticated, remote attacker to obtain sensitive information from network users that are outside the security group that the attacker is assigned to.   This vulnerability exists because certain files lack proper authorization enforcement. An attacker with administrative privileges and management rights over network users could exploit this vulnerability by exporting the users. A successful exploit could allow the attacker to view passwords that are normally not visible to administrators. 

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-20072?
CVE-2026-20072 is a medium-severity vulnerability in Cisco Identity Services Engine Software, classified under Incorrect Authorization. CVSS score: 4.9/10. Published 2026-09-16.
How severe is CVE-2026-20072?
Medium severity. CVSS v3 base score is 4.9 out of 10.