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CVE-2019-9508

13
FAUCET Score

CVE-2019-9508 is a stored Cross-Site Scripting (XSS) vulnerability affecting the web interface of Vertiv Avocent UMG-4000 version 4.2.1.19. An authenticated administrator can store a maliciously named file, leading to script execution whenever a user views the affected page. This vulnerability has a CVSS score of 3.5 (LOW), indicating a network-based attack requiring high privileges and user interaction, with low impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting low current threat activity.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.1.19CPE matchmatch criteria
cpe:2.3:o:vertiv:avocent_umg-4000_firmware:4.2.1.19:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 92nd percentile among its peer group of 289 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

vertiv.com / en-us/support/software-download/it-management/avocent-universal-management-gateway-appliance--software-downloads
Vendor Advisory
vertiv.com / en-us/support/software-download/software/trellis-enterprise-and-quick-start-solutions-software-downloads
Vendor Advisory