CVE-2026-20160 CRITICAL

CVE-2026-20160: Cisco Smart Software Manager On-Prem Arbitrary Command Execution Vulnerability

Vendor Cisco
Product Cisco Smart Software Manager On-Prem
Weakness CWE-668
Published April 1, 2026
Last update April 2, 2026

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A vulnerability in Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected SSM On-Prem host. This vulnerability is due to the unintentional exposure of an internal service. An attacker could exploit this vulnerability by sending a crafted request to the API of the exposed service. A successful exploit could allow the attacker to execute commands on the underlying operating system with root-level privileges.

Key dates

02Disclosure timeline

April 1, 2026 CVE published
April 2, 2026 Record updated