CVE-2026-20032
MEDIUMDescription
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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 1% of all known CVEs.
References
Related Vulnerabilities
Other CWE-653 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2025-1974 | Critical | 9.8 | 99% | - | - |
| CVE-2025-57738 | High | 7.2 | 23% | - | Fix |
| CVE-2025-21590 | Medium | 4.4 | 1.7% | KEV | Fix |
| CVE-2026-24781 | Critical | 9.8 | 1.2% | - | Fix |
| CVE-2026-53421 | Critical | 9.8 | 1.1% | - | Fix |
| CVE-2024-0135 | High | 7.6 | 1.1% | - | Fix |
Common questions
How do I fix CVE-2026-20032?
No published fix for CVE-2026-20032 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2026-20032 being actively exploited?
Not that we know of. CVE-2026-20032 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.11% is the estimated probability that it will be exploited in the next 30 days. That is higher than 1% of all scored CVEs.
How severe is CVE-2026-20032?
CVE-2026-20032 has a CVSS v3 base score of 4.4, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-10-08.