CVE-2019-9509
The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to reflected cross site scripting
- Published
- Updated
- Reserved
- Assigned by
- certcc
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| certccCNA (assigner) | 3.1 | Medium6.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L |
| NVDNVD · Modified | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.92% · top 40% of all CVEs (5 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.3.
Weakness
Affected products
- affected 4.2.1.19
What to do
Solution: Vertiv Avocent has released patches for these vulnerabilities. Trellis customers of the UMG running firmware v4.2.0.23 that are operating Trellis v5.0.2 through 5.0.6 and all Non-Trellis UMG customers should install the update patch found https://www.vertiv.com/en-us/support/software-download/it-management/avocent-universal-management-gateway-appliance--software-downloads/ . Trellis users of the UMG that are operating Trellis v5.0.6 and later should install Universal Gateway firmware version 4.3.0.23 found https://www.vertiv.com/en-us/support/software-download/software/trellis-enterprise-and-quick-start-solutions-software-downloads/ .
References (2)
- https://www.vertiv.com/en-us/support/software-download/it-management/avocent-universal-management-gateway-appliance--software-downloads/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.vertiv.com/en-us/support/software-download/software/trellis-enterprise-and-quick-start-solutions-software-downloads/ (opens in a new tab)x_refsource_MISCx_transferred
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)
- 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
[](https://trackcve.app/cve/CVE-2019-9509)Record last updated .