CVE-2019-9509
The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to reflected XSS in an HTTP POST parameter.
Does this matter?
Lower severity and a low EPSS score (0.92%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.92% probability · 60th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- vertiv/avocent umg-4000 firmware
- Source
- cret@cert.org
EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.vertiv.com/en-us/support/software-download/it-management/avocent-universal-management-gateway-appliance--software-downloads/Vendor Advisory
- https://www.vertiv.com/en-us/support/software-download/software/trellis-enterprise-and-quick-start-solutions-software-downloads/Vendor Advisory
- https://www.vertiv.com/en-us/support/software-download/it-management/avocent-universal-management-gateway-appliance--software-downloads/Vendor Advisory
- https://www.vertiv.com/en-us/support/software-download/software/trellis-enterprise-and-quick-start-solutions-software-downloads/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.