CVE-2026-76437
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Vulnerability report for CVE-2026-76437, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-07

Last updated on: 2026-10-08

Assigner: Cisco Systems, Inc.

Description

A vulnerability in the web-based user interface of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system. This vulnerability is due to improper validation of user-supplied content within configurations that are submitted to the web-based management interface. An attacker could exploit this vulnerability by updating configurations within the web-based management interface. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with root privileges. To exploit this vulnerability, the attacker must have valid administrative credentials. Because only an attacker who already holds system administrator privileges can exploit the vulnerability, the only additional privileges gained include the ability to turn off the system, which an administrative user could not normally do.

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Meta Information

Published
2026-10-07
Last Modified
2026-10-08
Generated
2026-11-08
AI Q&A
2026-10-07
EPSS Evaluated
2026-11-07
NVD
EUVD

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

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Executive Summary

This vulnerability allows an authenticated remote attacker with administrative credentials to execute arbitrary commands on the underlying operating system of Cisco License On-Prem through improper validation of user-supplied content in the web-based management interface.

Detection Guidance

This vulnerability requires authenticated administrative access to exploit, so detection should focus on monitoring for unauthorized configuration changes or command execution attempts in the Cisco License On-Prem web interface. Check system logs for unusual administrative activity or configuration updates. No specific commands are provided in the available context.

Impact Analysis

An attacker could gain root privileges and execute arbitrary commands, potentially turning off the system. However, since administrative credentials are required, the additional impact is limited to actions an admin could normally perform.

Compliance Impact

This vulnerability allows authenticated administrators to execute arbitrary commands with root privileges, potentially disabling the system. This could lead to unauthorized data access, modification, or deletion, violating GDPR and HIPAA compliance requirements for data integrity and security.

Mitigation Strategies

Immediately restrict administrative access to the Cisco License On-Prem web interface to only trusted users. Ensure all administrative accounts use strong passwords and enable multi-factor authentication if available.

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