Vulnerability · Published Aug 27, 2025 · Assigned by cisco
CVE-2025-20342Cisco Integrated Management Controller Virtual Keyboard Video Monitor (vKVM) Stored Cross-Site Scripting Vulnerability
Medium 5.4
In plain English
A medium-severity security flaw in Cisco Unified Computing System E-Series Software (UCSE) from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Official description
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 of an affected system. An attacker could exploit this vulnerability by injecting malicious code into a specific data field in the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid user credentials with privileges that allow for vKVM access on the affected device. Note: The affected vKVM client is also included in Cisco UCS Manager.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Unified Computing System (Managed) | 4.0(1a)3.2(3n)4.1(1a)4.1(1b)4.0(4h)4.1(1c)3.2(3k)3.2(2c) |
| Cisco | Cisco Unified Computing System (Standalone) | 2.0(1a)4.0(2g)2.0(13f)3.0(4n)2.0(3e)13.0(3e)2.0(8h)2.0(10g) |
| Cisco | Cisco Unified Computing System E-Series Software (UCSE) | 3.2.73.2.63.2.43.2.103.2.23.2.32.4.03.2.1 |
Weakness: CWE-80 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N