How severe is CVE-2019-9507?

CVE-2019-9507 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2019-9507 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9507?

CVE-2019-9507 affects Vertiv Avocent Umg-4000 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-9507?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-9507 published?

CVE-2019-9507 was published on 2020-03-30 and last updated on 2026-06-17.

CVE-2019-9507

CVE-2019-9507 is a high-severity vulnerability in Vertiv Avocent Umg-4000 Firmware with a CVSS 3.x base score of 8.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.

Key facts

Severity: High (CVSS 3.x base score 8.3)
CVSS v2: 9.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Vertiv Avocent Umg-4000 Firmware
Published: 2020-03-30
Last modified: 2026-06-17

Description

The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to command injection because the application incorrectly neutralizes code syntax before executing. Since all commands within the web application are executed as root, this could allow a remote attacker authenticated with an administrator account to execute arbitrary commands as root.

Frequently asked questions

What is CVE-2019-9507?: The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to command injection because the application incorrectly neutralizes code syntax before executing. Since all commands within the web application are executed as root, this could allow a remote attacker authenticated with an administrator account to execute arbitrary commands as root.
How severe is CVE-2019-9507?: CVE-2019-9507 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2019-9507 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9507?: CVE-2019-9507 affects Vertiv Avocent Umg-4000 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-9507?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-9507 published?: CVE-2019-9507 was published on 2020-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:vertiv:avocent_umg-4000_firmware:4.2.1.19:*:*:*:*:*:*:*

More vulnerabilities in Vertiv Avocent Umg-4000 Firmware

CVE-2019-9509 — Medium (CVSS 6.3): The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to reflected XSS in an HTTP POST…
CVE-2019-9508 — Medium (CVSS 6.3): The web interface of the Vertiv Avocent UMG-4000 version 4.2.1.19 is vulnerable to stored XSS. A remote attacker…

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