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.
Published: 2026-10-07
Score: 4.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized OS-level command execution
Action: Apply patch
AI Analysis

Impact

A vulnerability in Cisco NX-OS Software’s Python interpreter permits an authenticated local attacker with low privileges to escape the Python sandbox, enabling the execution of arbitrary operating‑system commands with the attacker’s user privileges. The flaw stems from insufficient validation of user‑supplied input, classifying it as CWE‑653.

Affected Systems

The issue affects Cisco NX‑OS Software. No specific version information was provided, so all deployments of Cisco NX‑OS Software may be susceptible unless newer releases have addressed the flaw.

Risk and Exploitability

The CVSS score is 4.4, indicating a moderate risk level. No EPSS score is available, and the vulnerability is not listed in CISA’s KEV catalog. The attack requires a local, authenticated user with low privileges; the attacker must be able to invoke the Python interpreter on the device. Once accessed, they can escape the sandbox and run arbitrary commands, but the exploit relies on legitimate user access rather than remote exploitation.

Generated by OpenCVE AI on October 7, 2026 at 18:17 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the Cisco NX-OS Software update referenced in the Cisco Security Advisory to fix the Python sandbox escape.
  • Restrict local authenticated access to the Python interpreter, limiting privileges for users who have it enabled until a patch is applied.
  • Enable detailed logging for Python interpreter activity and monitor system command execution for suspicious behavior.

Generated by OpenCVE AI on October 7, 2026 at 18:17 UTC.

Tracking

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Advisories

No advisories yet.

History

Sun, 11 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Cisco
Cisco nx-os Software
Vendors & Products Cisco
Cisco nx-os Software

Wed, 07 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 07 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
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&nbsp;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.
Title Cisco NX-OS Software Python Sandbox Escape Vulnerability
Weaknesses CWE-653
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'}


Subscriptions

Cisco Nx-os Software
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-10-07T19:23:47.285Z

Reserved: 2025-10-08T11:59:15.353Z

Link: CVE-2026-20032

cve-icon Vulnrichment

Updated: 2026-10-07T19:18:56.122Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-07T17:16:54.480

Modified: 2026-10-08T20:08:45.857

Link: CVE-2026-20032

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-11T12:15:18Z

Weaknesses
  • CWE-653

    Improper Isolation or Compartmentalization