Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2019-9509

16
FAUCET Score

CVE-2019-9509 describes a reflected Cross-Site Scripting (XSS) vulnerability in the web interface of Vertiv Avocent UMG-4000 version 4.2.1.19. An authenticated attacker can inject malicious code into an HTTP POST parameter, which is then reflected to other users. This medium-severity vulnerability (CVSS 5.4) requires user interaction and authenticated access, potentially leading to limited impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

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
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 91st percentile among its peer group of 15,224 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, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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