---
id: CVE-2026-20136
title: >-
  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 …
summary: >-
  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 …
severity: medium
cvss: 6
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-116
vendor: cisco
product: identity_services_engine
affected:
  - identity_services_engine < 3.3.0
  - identity_services_engine = 3.3.0
  - identity_services_engine = 3.4.0
  - identity_services_engine = 3.5.0
  - identity_services_engine_passive_identity_connector < 3.3.0
  - identity_services_engine_passive_identity_connector = 3.3.0
  - identity_services_engine_passive_identity_connector = 3.4.0
  - identity_services_engine_passive_identity_connector = 3.5.0
patched:
  - identity_services_engine 3.3.0
  - identity_services_engine_passive_identity_connector 3.3.0
published: '2026-04-15'
updated: '2026-07-02'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20136'
references:
  - url: >-
      https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-cmd-inj-5WSJcYJB
    label: psirt@cisco.com
tags:
  - nvd
epss: 0.00499
epssPercentile: 0.41617
ingestedAt: '2026-07-02T18:41:45.687Z'
---

## Overview

A vulnerability in the&nbsp;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.

## Affected

- `identity_services_engine < 3.3.0`
- `identity_services_engine = 3.3.0`
- `identity_services_engine = 3.4.0`
- `identity_services_engine = 3.5.0`
- `identity_services_engine_passive_identity_connector < 3.3.0`
- `identity_services_engine_passive_identity_connector = 3.3.0`
- `identity_services_engine_passive_identity_connector = 3.4.0`
- `identity_services_engine_passive_identity_connector = 3.5.0`

## Remediation

Upgrade past the affected range:

- `identity_services_engine 3.3.0`
- `identity_services_engine_passive_identity_connector 3.3.0`