---
id: CVE-2020-3167
title: >-
  A vulnerability in the CLI of Cisco FXOS Software and Cisco UCS Manager
  Software could allow an authenticated, local attacker to execute arbitrary
  commands on the underlying operating system (OS)
summary: >-
  A vulnerability in the CLI of Cisco FXOS Software and Cisco UCS Manager
  Software could allow an authenticated, local attacker to execute arbitrary
  commands on the underlying operating system (OS). The vulnerability is due to
  insufficient…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
  - CWE-78
vendor: cisco
product: secure_firewall_threat_defense
affected:
  - 'secure_firewall_threat_defense >= 6.2.2, < 6.2.3.13'
  - 'secure_firewall_threat_defense >= 6.3.0, < 6.4.0.8'
  - 'secure_firewall_threat_defense >= 6.5.0, < 6.5.0.2'
  - 'adaptive_security_appliance_software >= 9.8, < 9.9.2.66'
  - 'adaptive_security_appliance_software >= 9.10, < 9.12.3.6'
  - 'adaptive_security_appliance_software >= 9.13, < 9.13.1.5'
  - firepower_extensible_operating_system < 2.4.1.234
  - ucs_manager < 3.2\(3n\)
  - 'ucs_manager >= 4.0, < 4.0\(4g\)'
patched:
  - secure_firewall_threat_defense 6.5.0.2
  - adaptive_security_appliance_software 9.13.1.5
  - firepower_extensible_operating_system 2.4.1.234
  - ucs_manager 4.0\(4g\)
published: '2020-02-26'
updated: '2026-08-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-3167'
references:
  - url: >-
      https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-fxos-ucs-cmdinj
    label: psirt@cisco.com
  - url: >-
      https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-fxos-ucs-cmdinj
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00889
epssPercentile: 0.5732
ingestedAt: '2026-08-11T19:48:27.345Z'
---

## Overview

A vulnerability in the CLI of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system (OS). The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including crafted arguments to specific commands. A successful exploit could allow the attacker to execute arbitrary commands on the underlying OS with the privileges of the currently logged-in user for all affected platforms excluding Cisco UCS 6400 Series Fabric Interconnects. On Cisco UCS 6400 Series Fabric Interconnects, the injected commands are executed with root privileges.

## Affected

- `secure_firewall_threat_defense >= 6.2.2, < 6.2.3.13`
- `secure_firewall_threat_defense >= 6.3.0, < 6.4.0.8`
- `secure_firewall_threat_defense >= 6.5.0, < 6.5.0.2`
- `adaptive_security_appliance_software >= 9.8, < 9.9.2.66`
- `adaptive_security_appliance_software >= 9.10, < 9.12.3.6`
- `adaptive_security_appliance_software >= 9.13, < 9.13.1.5`
- `firepower_extensible_operating_system < 2.4.1.234`
- `ucs_manager < 3.2\(3n\)`
- `ucs_manager >= 4.0, < 4.0\(4g\)`

## Remediation

Upgrade past the affected range:

- `secure_firewall_threat_defense 6.5.0.2`
- `adaptive_security_appliance_software 9.13.1.5`
- `firepower_extensible_operating_system 2.4.1.234`
- `ucs_manager 4.0\(4g\)`