CVE-2026-76437
MediumCVSS 4.9Summary
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. The vulnerability is due to improper validation of user-supplied content within configurations submitted to the web-based management interface. Exploitation requires valid administrative credentials.
Risk Assessment
An attacker with administrative privileges could execute arbitrary commands with root privileges, potentially leading to full compromise of the device. An additional impact is the ability to shut down the system, which a normal administrative user could not do.
Recommendation
Update Cisco License On-Prem to a version containing the fix. Restrict administrative accounts and monitor configuration changes in the management interface.
Other vulnerabilities in Cisco License On-Prem
See all- CVE-2026-76484High
Vulnerability in Cisco License On-Prem (formerly Cisco Smart Software Manager On-Prem) related to insufficient protection against code injection (CWE-94). Discovered during an internal security review, addressed in software hardening releases.
- CVE-2026-76452Medium
A vulnerability in the web-based management interface of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem), could allow an authenticated, remote attacker to conduct SQL injection attacks against an affected application. The vulnerability is due to insufficient validation of user-supplied input. Exploitation requires valid administrative user credentials.
- CVE-2026-76483Critical
A security review in Cisco License On-Prem (formerly SSM On-Prem) revealed multiple vulnerabilities related to insufficiently protected credentials (CWE-522). These have been addressed in hardening releases.
- CVE-2026-76482Critical
A security review in Cisco License On-Prem (formerly SSM On-Prem) revealed multiple vulnerabilities related to improper input verification (CWE-347). These have been addressed in hardening releases.
- CVE-2026-76480Critical
Cisco License On-Prem (formerly Cisco Smart Software Manager On-Prem) contains vulnerabilities related to improper authentication, grouped under CWE-306. They were discovered during an internal security review and addressed in a hardening release.
- CVE-2026-76454Critical
A vulnerability in the Cisco Smart Licensing Utility API of Cisco License On-Prem (formerly SSM On-Prem) could allow an unauthenticated, remote attacker to write arbitrary files to the system or cause a DoS condition. It is due to improper input validation and lack of authentication in the management API.
- CVE-2026-20328Critical
A vulnerability in the web-based management interface of Cisco License On-Prem (formerly SSM On-Prem) could allow an unauthenticated, remote attacker to gain unauthorized access to the application. It is due to improper checks during the password reset process.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS