What is CVE-2026-20193?

CVE-2026-20193 is a medium-severity vulnerability in Cisco Identity Services Engine Software, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-05-06.

How severe is CVE-2026-20193?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Cisco Identity Services Engine Software

CVE-2026-20193

A vulnerability in the RADIUS Policy API endpoints of Cisco ISE could allow an authenticated, remote attacker with read-only Administrator privileges to gain unauthorized access to sensitive information on an affected device. This…

Vulnerability class: Broken Access Control

EPSS: 0.000 (9.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Cisco Identity Services Engine Software — versions 3.3.0, 3.3 Patch 2, 3.3 Patch 1

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

cisco-sa-ise-unauth-bypass-uxjRXGpb

Frequently asked questions

What is CVE-2026-20193?: CVE-2026-20193 is a medium-severity vulnerability in Cisco Identity Services Engine Software, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-05-06.
How severe is CVE-2026-20193?: Medium severity. CVSS v3 base score is 4.3 out of 10.