How severe is CVE-2021-3584?

CVE-2021-3584 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-3584 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3584?

CVE-2021-3584 primarily affects Redhat Satellite. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-3584?

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-2021-3584 published?

CVE-2021-3584 was published on 2021-12-23 and last updated on 2026-06-17.

CVE-2021-3584

CVE-2021-3584 is a high-severity vulnerability in Redhat Satellite with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 9.0
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Redhat Satellite
Published: 2021-12-23
Last modified: 2026-06-17

Description

A server side remote code execution vulnerability was found in Foreman project. A authenticated attacker could use Sendmail configuration options to overwrite the defaults and perform command injection. The highest threat from this vulnerability is to confidentiality, integrity and availability of system. Fixed releases are 2.4.1, 2.5.1, 3.0.0.

Frequently asked questions

What is CVE-2021-3584?: A server side remote code execution vulnerability was found in Foreman project. A authenticated attacker could use Sendmail configuration options to overwrite the defaults and perform command injection. The highest threat from this vulnerability is to confidentiality, integrity and availability of system. Fixed releases are 2.4.1, 2.5.1, 3.0.0.
How severe is CVE-2021-3584?: CVE-2021-3584 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-3584 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3584?: CVE-2021-3584 primarily affects Redhat Satellite. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-3584?: 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-2021-3584 published?: CVE-2021-3584 was published on 2021-12-23 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:theforeman:foreman:*:*:*:*:*:*:*:*
cpe:2.3:a:theforeman:foreman:3.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:theforeman:foreman:3.0.0:rc2:*:*:*:*:*:*
cpe:2.3:o:redhat:satellite:6.0:*:*:*:*:*:*:*

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