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CVE-2026-20160

CRITICAL CVSS 3.1: 9.8 EPSS 0.17%
Updated Apr 03, 2026
Cisco
Parameter Value
CVSS 9.8 (CRITICAL)
Type CWE-668 (Exposure of Resource to Wrong Sphere)
Vendor Cisco
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1