CVE-2025-20342Cisco Integrated Management Controller Virtual Keyboard Video Monitor (vKVM) Stored Cross-Site Scripting Vulnerability

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.

Timeline

Scores

EPSS (exploitation in 30 days)

0.22% · top 87% of all CVEs (13 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.

Affected products

• Cisco · Cisco Unified Computing System (Managed)

  • affected 4.0(1a)
  • affected 3.2(3n)
  • affected 4.1(1a)
  • affected 4.1(1b)
  • affected 4.0(4h)
  • affected 4.1(1c)
  • affected 3.2(3k)
  • affected 3.2(2c)
  • affected 4.0(4e)
  • affected 4.0(4g)
  • affected 3.2(3i)
  • affected 4.0(2e)
  • affected 3.2(3g)
  • affected 4.0(4a)
  • affected 4.0(2d)
  • affected 3.2(2d)
  • affected 4.0(1b)
  • affected 4.0(4f)
  • affected 3.2(3h)
  • affected 3.2(2f)
  • affected 4.0(4c)
  • affected 3.2(3a)
  • affected 4.0(1c)
  • affected 3.2(3d)
  • affected 3.2(2b)
  • affected 4.0(4b)
  • affected 3.2(2e)
  • affected 4.0(2b)
  • affected 4.0(4d)
  • affected 3.2(1d)
  • affected 3.2(3e)
  • affected 3.2(3l)
  • affected 3.2(3b)
  • affected 4.0(2a)
  • affected 3.2(3j)
  • affected 4.0(1d)
  • affected 3.2(3o)
  • affected 4.0(4i)
  • affected 4.1(1d)
  • affected 4.1(2a)
  • and 63 more

• Cisco · Cisco Unified Computing System (Standalone)

  • affected 2.0(1a)
  • affected 4.0(2g)
  • affected 2.0(13f)
  • affected 3.0(4n)
  • affected 2.0(3e)1
  • affected 3.0(3e)
  • affected 2.0(8h)
  • affected 2.0(10g)
  • affected 3.1(2i)
  • affected 3.0(3c)
  • affected 3.0(4m)
  • affected 3.1(1d)
  • affected 3.0(3a)
  • affected 3.0(1d)
  • affected 2.0(9o)
  • affected 2.0(13n)
  • affected 4.0(4i)
  • affected 4.1(1c)
  • affected 2.0(13q)
  • affected 2.0(3j)1
  • affected 4.0(2c)
  • affected 2.0(9n)
  • affected 4.0(1e)
  • affected 2.0(13o)
  • affected 2.0(6f)
  • affected 2.0(10c)
  • affected 2.0(8d)
  • affected 2.0(9m)
  • affected 4.0(2h)
  • affected 3.0(4j)
  • affected 2.0(10i)
  • affected 3.0(3f)
  • affected 2.0(10l)
  • affected 2.0(12e)
  • affected 2.0(12i)
  • affected 2.0(10h)
  • affected 2.0(13e)
  • affected 3.0(4k)
  • affected 2.0(10b)
  • affected 2.0(6d)
  • and 152 more

• Cisco · Cisco Unified Computing System E-Series Software (UCSE)

  • affected 3.2.7
  • affected 3.2.6
  • affected 3.2.4
  • affected 3.2.10
  • affected 3.2.2
  • affected 3.2.3
  • affected 2.4.0
  • affected 3.2.1
  • affected 3.2.11.1
  • affected 3.2.8
  • affected 3.1.1
  • affected 3.0.2
  • affected 2.1.0
  • affected 2.2.2
  • affected 3.1.2
  • affected 3.0.1
  • affected 2.3.2
  • affected 2.3.5
  • affected 2.2.1
  • affected 3.1.4
  • affected 2.4.1
  • affected 2.3.1
  • affected 3.1.3
  • affected 2.3.3
  • affected 2.4.2
  • affected 3.1.5
  • affected 3.1.0
  • affected 2.0.0
  • affected 3.2.11.3
  • affected 3.2.11.5
  • affected 3.2.12.2
  • affected 3.2.13.6
  • affected 3.2.14
  • affected 4.11.1
  • affected 3.2.15
  • affected 4.12.1
  • affected 3.2.15.3
  • affected 4.12.2
  • affected 3.2.16.1
  • affected 2.02
  • and 1 more

What to do

Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2025-25942 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2025-20342](https://cveledger.app/badge/CVE-2025-20342.svg)](https://cveledger.app/cve/CVE-2025-20342)

Record last updated 27 Aug 2025, 17:38 UTC.