---
id: CVE-2026-20032
title: >-
  A vulnerability in the Python interpreter of Cisco NX-OS Software could allow
  an authenticated, local attacker with low privileges to escape the Python
  sandbox and gain unauthorized access to the underlying operating system of an
  affecte…
summary: >-
  A vulnerability in the Python interpreter of Cisco NX-OS Software could allow
  an authenticated, local attacker with low privileges to escape the Python
  sandbox and gain unauthorized access to the underlying operating system of an
  affecte…
severity: medium
cvss: 4.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-653
vendor: Cisco
product: Cisco NX-OS Software
affected:
  - nx-os_software 8.2(5)
  - nx-os_software 7.3(5)D1(1)
  - nx-os_software 8.4(2)
  - nx-os_software 8.4(3)
  - nx-os_software 9.2(3)
  - nx-os_software 8.2(1)
  - nx-os_software 7.3(1)D1(1)
  - nx-os_software 9.2(2v)
  - nx-os_software 7.3(0)D1(1)
  - nx-os_software 7.3(4)D1(1)
  - nx-os_software 9.2(1)
  - nx-os_software 9.2(2t)
  - nx-os_software 9.2(3y)
  - nx-os_software 9.3(2)
  - nx-os_software 7.3(1)DY(1)
  - nx-os_software 8.1(1)
  - nx-os_software 8.2(2)
  - nx-os_software 8.3(2)
  - nx-os_software 7.3(2)D1(3a)
  - nx-os_software 9.2(4)
  - nx-os_software 8.1(2)
  - nx-os_software 7.3(3)D1(1)
  - nx-os_software 8.2(3)
  - nx-os_software 8.3(1)
  - nx-os_software 8.4(1)
  - nx-os_software 8.1(1b)
  - nx-os_software 7.3(0)DX(1)
  - nx-os_software 7.3(2)D1(1)
  - nx-os_software 9.3(1)
  - nx-os_software 7.3(2)D1(2)
  - nx-os_software 8.2(4)
  - nx-os_software 7.3(0)DY(1)
  - nx-os_software 9.3(1z)
  - nx-os_software 9.2(2)
  - nx-os_software 8.1(2a)
  - nx-os_software 7.3(2)D1(3)
  - nx-os_software 8.1(1a)
  - nx-os_software 8.4(1a)
  - nx-os_software 9.3(3)
  - nx-os_software 7.3(2)D1(1d)
  - nx-os_software 9.3(4)
  - nx-os_software 7.3(6)D1(1)
  - nx-os_software 8.2(6)
  - nx-os_software 9.3(5)
  - nx-os_software 8.4(2a)
  - nx-os_software 8.4(2b)
  - nx-os_software 8.5(1)
  - nx-os_software 9.3(6)
  - nx-os_software 8.4(4)
  - nx-os_software 7.3(7)D1(1)
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T17:16:54.480'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20032'
references:
  - url: >-
      https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mppe-dhKZAFgb
    label: psirt@cisco.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-07T16:38:22.257Z'
---

## Overview

A vulnerability in the Python interpreter of Cisco NX-OS Software could allow an authenticated, local attacker with low privileges to escape the Python sandbox and gain unauthorized access to the underlying operating system of an affected device.

This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by manipulating specific functions within the Python interpreter. A successful exploit could allow an attacker to escape the Python sandbox and execute arbitrary commands on the underlying operating system with the privileges of the authenticated user.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.