How severe is CVE-2021-27185?

CVE-2021-27185 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-2021-27185 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27185?

CVE-2021-27185 affects Samba-client Project Samba-client. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27185?

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-2021-27185 published?

CVE-2021-27185 was published on 2021-02-10 and last updated on 2026-06-17.

CVE-2021-27185

CVE-2021-27185 is a critical-severity vulnerability in Samba-client Project Samba-client 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: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Samba-client Project Samba-client
Published: 2021-02-10
Last modified: 2026-06-17

Description

The samba-client package before 4.0.0 for Node.js allows command injection because of the use of process.exec.

Frequently asked questions

What is CVE-2021-27185?: The samba-client package before 4.0.0 for Node.js allows command injection because of the use of process.exec.
How severe is CVE-2021-27185?: CVE-2021-27185 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-2021-27185 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27185?: CVE-2021-27185 affects Samba-client Project Samba-client. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27185?: 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-2021-27185 published?: CVE-2021-27185 was published on 2021-02-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:samba-client_project:samba-client:*:*:*:*:*:node.js:*:*

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