The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to reflected cross site scripting
Priority LOW 30CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to reflected XSS in an HTTP POST parameter. The web application does not neutralize user-controllable input before displaying to users in a web page, which could allow a remote attacker authenticated with a user account to execute arbitrary code.
Why it matters now
EPSS 0.00917 60th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Vertiv | Avocent UMG-4000 | 4.2.1.19 | — | No fix listed | CNA |
- Avocent UMG-4000 VendorVertiv Affected 4.2.1.19 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-9509
- 2026-10-03 Alias added: GHSA-pcgh-c3ww-gxh7
References
More Vertiv Avocent Umg-4000 Firmware vulnerabilities
- TI-2019-06942 The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to arbitrary remote code execution CVSS 3.1HIGH 8.3
- TI-2019-06943 Vertiv Avocent UMG-4000 version 4.2.1.19 web interface is vulnerable to stored cross site scripting CVSS 3.1MEDIUM 6.3
Sources
- CVE-2019-9509 · CVE Program
- CVE-2019-9509 · NVD
- FIRST EPSS
- GHSA-pcgh-c3ww-gxh7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences