Cisco SSM On-Prem RCE via exposed internal API
CVE-2026-20160 Published on April 1, 2026
Cisco Smart Software Manager On-Prem Arbitrary Command Execution Vulnerability
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.
Vulnerability Analysis
CVE-2026-20160 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
Exposure of Resource to Wrong Sphere
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.
Products Associated with CVE-2026-20160
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Affected Versions
Cisco Smart Software Manager On-Prem:- Version 9-202502 is affected.
- Version 9-202504 is affected.
- Version 9-202507 is affected.
- Version 9-202510 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.