CVE-2026-20192 Cisco Identity Services Engine - Broken Access Control

Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector contain improper access control vulnerabilities caused by insufficient authorization checks, letting attackers gain unauthorized access, exploit requires no special conditions.

CVSS base score 10.0 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.46% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026
Weakness
CWE-284

Vendor fix

Update to the latest software hardening release provided by Cisco.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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