CVE-2025-20342

Medium

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.

SeverityMedium
CVSS5.4
Exploit probability—
ProductCisco Unified Computing System (Managed)
PublishedAug 27, 2025
First seenAug 27, 2025
Weakness typeCWE-80CWE-80

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
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), 4.0(4e), 4.0(4g), 3.2(3i), 4.0(2e), 3.2(3g), 4.0(4a), 4.0(2d), 3.2(2d), 4.0(1b), 4.0(4f), 3.2(3h), 3.2(2f), 4.0(4c), 3.2(3a), 4.0(1c), 3.2(3d), 3.2(2b), 4.0(4b), 3.2(2e), 4.0(2b), 4.0(4d), 3.2(1d), 3.2(3e), 3.2(3l), 3.2(3b), 4.0(2a), 3.2(3j), 4.0(1d), 3.2(3o), 4.0(4i), 4.1(1d), 4.1(2a), 4.1(1e), 3.2(3p), 4.1(2b), 4.0(4k), 4.1(3a), 4.1(3b), 4.1(2c), 4.0(4l), 4.1(4a), 4.1(3c), 4.1(3d), 4.2(1c), 4.2(1d), 4.0(4m), 4.1(3e), 4.2(1f), 4.1(3f), 4.2(1i), 4.1(3h), 4.2(1k), 4.2(1l), 4.0(4n), 4.2(1m), 4.1(3i), 4.2(2a), 4.2(1n), 4.1(3j), 4.2(2c), 4.2(2d), 4.2(3b), 4.1(3k), 4.0(4o), 4.2(2e), 4.2(3d), 4.2(3e), 4.2(3g), 4.1(3l), 4.3(2b), 4.2(3h), 4.2(3i), 4.3(2c), 4.1(3m), 4.3(2e), 4.3(3a), 4.2(3j), 4.3(3c), 4.3(4a), 4.2(3k), 4.3(4b), 4.3(4c), 4.2(3l), 4.3(4d), 4.3(2f), 4.2(3m), 4.3(5a), 4.3(4e), 4.1(3n), 4.3(4f), 4.2(3n), 4.3(5c), 4.2(3o), 4.3(5d), 4.3(5e)—
Cisco Cisco Unified Computing System (Standalone)2.0(1a), 4.0(2g), 2.0(13f), 3.0(4n), 2.0(3e)1, 3.0(3e), 2.0(8h), 2.0(10g), 3.1(2i), 3.0(3c), 3.0(4m), 3.1(1d), 3.0(3a), 3.0(1d), 2.0(9o), 2.0(13n), 4.0(4i), 4.1(1c), 2.0(13q), 2.0(3j)1, 4.0(2c), 2.0(9n), 4.0(1e), 2.0(13o), 2.0(6f), 2.0(10c), 2.0(8d), 2.0(9m), 4.0(2h), 3.0(4j), 2.0(10i), 3.0(3f), 2.0(10l), 2.0(12e), 2.0(12i), 2.0(10h), 2.0(13e), 3.0(4k), 2.0(10b), 2.0(6d), 2.0(12b), 4.0(4h), 2.0(12h), 2.0(10f), 3.0(4l), 4.0(1h), 4.0(2l), 2.0(3i), 2.0(3f)3, 3.0(4a), 2.0(13p), 2.0(9l), 2.0(12g), 2.0(12c), 2.0(12f), 2.0(13k), 3.0(3b), 2.0(1b), 3.1(3g), 2.0(4c), 4.0(1.240), 2.0(12d), 4.0(2f), 4.0(1g), 3.0(4d), 3.0(2b), 2.0(3d)2, 2.0(3d)1, 2.0(9f), 2.0(13h), 3.0(4e), 2.0(8g), 4.0(2i), 2.0(10e), 2.0(13i), 2.0(9c), 2.0(4c)1, 3.0(1c), 2.0(8e), 2.0(9e), 2.0(9p), 3.1(3i), 3.0(4i), 2.0(10k), 3.0(4o), 4.0(4d), 4.1(1d), 3.1(3c), 4.0(4k), 3.1(2d), 3.1(3a), 3.1(3j), 4.0(2d), 4.1(1f), 3.0(4p), 4.0(1c), 4.0(4f)—

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CVE-2025-20342 · Cisco Unified Computing System (Managed) · Dark Radar