How severe is CVE-2021-38124?

CVE-2021-38124 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-38124 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-38124?

CVE-2021-38124 affects Microfocus Arcsight Enterprise Security Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-38124?

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

When was CVE-2021-38124 published?

CVE-2021-38124 was published on 2021-09-28 and last updated on 2026-06-17.

CVE-2021-38124

CVE-2021-38124 is a critical-severity vulnerability in Microfocus Arcsight Enterprise Security Manager with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Microfocus Arcsight Enterprise Security Manager
Published: 2021-09-28
Last modified: 2026-06-17

Description

Remote Code Execution vulnerability in Micro Focus ArcSight Enterprise Security Manager (ESM) product, affecting versions 7.0.2 through 7.5. The vulnerability could be exploited resulting in remote code execution.

Frequently asked questions

What is CVE-2021-38124?: Remote Code Execution vulnerability in Micro Focus ArcSight Enterprise Security Manager (ESM) product, affecting versions 7.0.2 through 7.5. The vulnerability could be exploited resulting in remote code execution.
How severe is CVE-2021-38124?: CVE-2021-38124 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-38124 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-38124?: CVE-2021-38124 affects Microfocus Arcsight Enterprise Security Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-38124?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-38124 published?: CVE-2021-38124 was published on 2021-09-28 and last updated on 2026-06-17.

References

https://portal.microfocus.com/s/article/KM000001960

Affected products (1)

cpe:2.3:a:microfocus:arcsight_enterprise_security_manager:*:*:*:*:*:*:*:*

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