CVE-2026-20136 MEDIUM

CVE-2026-20136: Cisco Identity Services Engine Authenticated Privilege Escalation Vulnerability

Vendor Cisco
Product Cisco Identity Services Engine Software
Weakness CWE-116
Published April 15, 2026
Last update April 16, 2026

CVSS base score

6.0/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

A vulnerability in the CLI of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, local attacker with administrative privileges to perform a command injection attack on the underlying operating system and elevate privileges to root. This vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by providing crafted input to a specific CLI command. A successful exploit could allow the attacker to elevate their privileges to root on the underlying operating system.

Key dates

02Disclosure timeline

April 15, 2026 CVE published
April 16, 2026 Record updated