Vulnerability in Cisco Nx-Os Software
CVE-2026-20032
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 .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Cisco Nx-Os Software — versions 10.3(1), 10.3(2), 10.3(3)
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20032?
- CVE-2026-20032 is a medium-severity vulnerability in Cisco Nx-Os Software, classified under CWE-653. CVSS score: 4.4/10. Published 2026-10-07.
- How severe is CVE-2026-20032?
- Medium severity. CVSS v3 base score is 4.4 out of 10.