MEDIUM Cisco Systems, Inc. Vulnerability Alert

Product: Cisco Integrated Management Controller (IMC)

Summary

A vulnerability in the Virtual Keyboard Video Monitor (vKVM) connection handling of Cisco Integrated Management Controller (IMC) could allow an authenticated, remote attacker with low privileges to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit this vulnerability by injecting malicious code into a specific data field in the interface, potentially executing arbitrary script code or accessing sensitive information.

Details

Severity Base Score CVE
MEDIUM 5.4 CVE-2025-20342

Exploitation

To exploit this vulnerability, an attacker must have valid user credentials with privileges that allow for vKVM access on the affected device. The attacker can then inject malicious code into a specific data field in the web-based management interface, leading to a stored XSS attack that executes arbitrary script code in the context of the affected interface.

Affected Products

  • Cisco Integrated Management Controller (IMC) – Vulnerable due to insufficient input validation in the vKVM connection handling.
  • Cisco UCS Manager – The affected vKVM client is also included in this product.

Mitigation

To mitigate this vulnerability, it is recommended that users ensure proper input validation and sanitization in the web-based management interface. Additionally, restricting access to the vKVM feature to only trusted users can help reduce the risk of exploitation.

References