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6.7
Cisco FXOS and UCS Manager interface allows attackers to gain root access
CVE-2026-20099
Summary
An authenticated attacker with admin privileges can exploit a weakness in the interface to execute arbitrary commands on the device, potentially gaining full control. This is a concern because it could allow the attacker to disrupt or manipulate the device. To mitigate this risk, ensure that you only allow trusted users to access the management interface, and review and update your authentication and authorization procedures as needed.
Original title
A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perfo...
Original description
A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to root.
This vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.
This vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.
nvd CVSS3.1
6.7
Vulnerability type
CWE-78
OS Command Injection
Published: 25 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026