All vulnerabilities
CVE-2026-20032

Cisco NX-OS Software Python Sandbox Escape Vulnerability

Cisco Cisco NX-OS SoftwareNetwork & edge
Open in ThreatlineRecord JSON
CVSS
4.4Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.11%Chance of exploitation activity in the next 30 days, higher than 1% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published7 Oct 2026Updated 7 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

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.

Text from CVE List

Affected versions 30

  • Cisco NX-OS Softwareaffected: 8.2(5)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(5)D1(1)CVE List
  • Cisco NX-OS Softwareaffected: 8.4(2)CVE List
  • Cisco NX-OS Softwareaffected: 8.4(3)CVE List
  • Cisco NX-OS Softwareaffected: 9.2(3)CVE List
  • Cisco NX-OS Softwareaffected: 8.2(1)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(1)D1(1)CVE List
  • Cisco NX-OS Softwareaffected: 9.2(2v)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(0)D1(1)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(4)D1(1)CVE List
  • Cisco NX-OS Softwareaffected: 9.2(1)CVE List
  • Cisco NX-OS Softwareaffected: 9.2(2t)CVE List
  • Cisco NX-OS Softwareaffected: 9.2(3y)CVE List
  • Cisco NX-OS Softwareaffected: 9.3(2)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(1)DY(1)CVE List
  • Cisco NX-OS Softwareaffected: 8.1(1)CVE List
  • Cisco NX-OS Softwareaffected: 8.2(2)CVE List
  • Cisco NX-OS Softwareaffected: 8.3(2)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(2)D1(3a)CVE List
  • Cisco NX-OS Softwareaffected: 9.2(4)CVE List
  • Cisco NX-OS Softwareaffected: 8.1(2)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(3)D1(1)CVE List
  • Cisco NX-OS Softwareaffected: 8.2(3)CVE List
  • Cisco NX-OS Softwareaffected: 8.3(1)CVE List
  • Cisco NX-OS Softwareaffected: 8.4(1)CVE List
  • Cisco NX-OS Softwareaffected: 8.1(1b)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(0)DX(1)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(2)D1(1)CVE List
  • Cisco NX-OS Softwareaffected: 9.3(1)CVE List
  • Cisco NX-OS Softwareaffected: 7.3(2)D1(2)CVE List

References 1