CVE-2021-27185

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 4.8%, top 9% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5%CVSS: 9.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation5% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
5%
EPSS %ILE
92%
KEV
Not listed

Published

February 10, 2021

Last Modified

November 21, 2024

Advisory Details (4)

Auto-updated Sep 19, 2026
Patch available. Sources: github_release, github_commit.
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20210319-0002/
github_release Patch Available

4.0.0

Patch available: eflexsystems/node-samba-client 4.0.0

https://github.com/eflexsystems/node-samba-client/releases/tag/4.0.0
github_commit Patch Available

commit 5bc3bbad9b8d (eflexsystems/node-samba-client)

Patch available: eflexsystems/node-samba-client 4.0.0 (contains commit 5bc3bbad9b8d)

https://github.com/eflexsystems/node-samba-client/commit/5bc3bbad9b8d02243bc861a11ec73f788fbb1235
generic

Checkmarx Advisory

https://advisory.checkmarx.net/advisory/CX-2021-4302

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
samba-client—4.0.0—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 29× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 156 total refreshes for this CVE.

  1. 2026-09-19 15:37 UTCEPSS rescore
  2. 2026-09-18 19:23 UTCEPSS rescore
  3. 2026-09-17 19:23 UTCEPSS rescore
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  10. 2026-09-11 09:33 UTCEPSS rescore
  11. 2026-09-08 21:56 UTCEPSS rescore
  12. 2026-09-06 22:31 UTCOSV refresh
  13. 2026-09-06 13:44 UTCEPSS rescore
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  21. 2026-08-30 19:14 UTCEPSS rescore
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  24. 2026-08-27 14:22 UTCEPSS rescore
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  1. 2026-08-25 13:45 UTCEPSS rescore
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  3. 2026-08-23 00:16 UTCEPSS rescore
  4. 2026-08-21 23:46 UTCEPSS rescore
  5. 2026-08-20 22:52 UTCEPSS rescore
  6. 2026-08-20 08:31 UTCOSV refresh
  7. 2026-08-19 17:01 UTCEPSS rescore
  8. 2026-08-18 13:45 UTCEPSS rescore
  9. 2026-08-17 13:44 UTCEPSS rescore
  10. 2026-08-16 14:53 UTCEPSS rescore
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  20. 2026-08-06 13:43 UTCEPSS rescore
  21. 2026-08-05 19:14 UTCEPSS rescore
  22. 2026-08-05 03:41 UTCOSV refresh
  23. 2026-08-04 15:06 UTCEPSS rescore
  24. 2026-08-04 10:34 UTCEPSS rescore
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  26. 2026-08-02 02:24 UTCEPSS rescore
  27. 2026-08-01 04:13 UTCEPSS rescore
  28. 2026-07-30 16:25 UTCEPSS rescore
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  37. 2026-07-23 14:16 UTCEPSS rescore
  38. 2026-07-23 01:59 UTCEG score recompute
  39. 2026-07-22 22:45 UTCEG score recompute
  40. 2026-07-22 14:06 UTCEPSS rescore
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  42. 2026-07-21 15:22 UTCEPSS rescore
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  44. 2026-07-20 17:05 UTCEPSS rescore
  45. 2026-07-19 14:28 UTCEPSS rescore
  46. 2026-07-19 02:27 UTCEPSS rescore
  47. 2026-07-19 02:27 UTCEPSS rescore
  48. 2026-07-19 01:59 UTCOSV refresh
  49. 2026-07-18 10:02 UTCEPSS rescore
  50. 2026-07-18 10:02 UTCEPSS rescore
  51. 2026-07-16 17:00 UTCEPSS rescore
  52. 2026-07-15 16:55 UTCEPSS rescore
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  55. 2026-07-13 22:27 UTCEPSS rescore
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  60. 2026-07-11 08:25 UTCEPSS rescore
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  62. 2026-07-09 19:07 UTCEPSS rescore
  63. 2026-07-08 15:12 UTCEPSS rescore
  64. 2026-07-07 13:43 UTCEPSS rescore
  65. 2026-07-06 16:25 UTCEPSS rescore
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  67. 2026-07-06 02:21 UTCEPSS rescore
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  69. 2026-07-05 02:28 UTCEPSS rescore
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  72. 2026-07-02 16:57 UTCEPSS rescore
  73. 2026-07-01 15:03 UTCEPSS rescore
  74. 2026-07-01 08:48 UTCOSV refresh
  75. 2026-06-30 23:20 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-27185?
CVE-2021-27185 is a critical vulnerability published on February 10, 2021. The samba-client package before 4.0.0 for Node.js allows command injection because of the use of process.exec.
When was CVE-2021-27185 disclosed?
CVE-2021-27185 was first published in the National Vulnerability Database on February 10, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-27185 actively exploited?
CVE-2021-27185 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5% probability of exploitation in the next 30 days, which ranks it in the top 8.4% of all scored CVEs.
What is the CVSS score of CVE-2021-27185?
CVE-2021-27185 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2021-27185?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27185, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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