Command Injection in Cisco Identity Services Engine (ISE) - CVE-2026-20186
Published: April 17, 2026
Vulnerability identifier: #VU126399
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-20186
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary commands on the system.
The vulnerability exists due to insufficient input validation. A remote user can pass specially crafted data to the application and execute arbitrary commands.
Affected software
Cisco Identity Services Engine (ISE)
How to mitigate CVE-2026-20186
Install updates from vendor's website.
Cisco Identity Services Engine (ISE) - addressed in versions 3.2 Patch 8, 3.3 Patch 8, 3.4 Patch 4