XSS in Cisco Unified Computing System E-series Software (Ucse)
CVE-2025-20342
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 (XS…
EPSS: 0.000 (13.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Cisco Unified Computing System E-series Software (Ucse) — versions 3.2.7, 3.2.6, 3.2.4
- Cisco Unified Computing System (Managed) — versions 4.0(1a), 3.2(3n), 4.1(1a)
- Cisco Unified Computing System (Standalone) — versions 2.0(1a), 4.0(2g), 2.0(13f)
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2025-20342?
- CVE-2025-20342 is a medium-severity vulnerability in Cisco Unified Computing System E-series Software (Ucse), classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 5.4/10. Published 2025-08-27.
- How severe is CVE-2025-20342?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2025-20342 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.