Vulnerability · Published Oct 7, 2026 · Assigned by cisco
CVE-2026-20032Cisco NX-OS Software Python Sandbox Escape Vulnerability
Medium 4.4
In plain English
A medium-severity security flaw in Cisco NX-OS Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco NX-OS Software | 8.2(5)7.3(5)D1(1)8.4(2)8.4(3)9.2(3)8.2(1)7.3(1)D1(1)9.2(2v) |
Weakness: CWE-653 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N