XSS in Cisco Enterprise Nfv Infrastructure Software
CVE-2026-20089
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with administrative privileges to conduct a stored XSS attack against a user of the interface. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (13.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Cisco Enterprise Nfv Infrastructure Software — versions 4.1.1, 3.9.1, 3.5.2
- Cisco Unified Computing System E-Series Software (Ucse) — versions 3.2.7, 3.2.6, 3.2.4
- Cisco Unified Computing System (Standalone) — versions 4.0(2g), 3.1(2i), 3.1(1d)
- Cisco Enterprise Nfv Infrastructure Software — versions 3.10.1, 3.10.2, 3.10.3
- Cisco Unified Computing System — versions 3.1(1d), 3.1(2b), 3.1(2c)
- Cisco Unified Computing System E-Series Software — versions 2.0.0, 2.1.0, 2.2.1
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20089?
- CVE-2026-20089 is a medium-severity vulnerability in Cisco Enterprise Nfv Infrastructure Software, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-04-01.
- How severe is CVE-2026-20089?
- Medium severity. CVSS v3 base score is 4.8 out of 10.