CVE-2026-20032: Cisco NX-OS Software Python Sandbox Escape Vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An attacker must be authenticated to the affected device, have local access, and hold low privileges. Remote unauthenticated attackers are not described as able to exploit it.
What access could an attacker gain after exploitation?
A successful attacker could escape the Python sandbox and execute arbitrary commands on the underlying operating system. Those commands run with the privileges of the authenticated user.
Is there a workaround or affected-version list available here?
The provided information does not include affected or fixed versions, configuration prerequisites, or mitigations. Review the referenced Cisco security advisory for product-specific remediation guidance.