CVE-2019-3870

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.1Exploit: NoneExposed: 0

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

A vulnerability was found in Samba from version (including) 4.9 to versions before 4.9.6 and 4.10.2. During the creation of a new Samba AD DC, files are created in a private subdirectory of the install location. This directory is typically mode 0700, that is owner (root) only access. However in some upgraded installations it will have other permissions, such as 0755, because this was the default before Samba 4.8. Within this directory, files are created with mode 0666, which is world-writable, including a sample krb5.conf, and the list of DNS names and servicePrincipalName values to update.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity61% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
42.7%
KEV
Not listed

Published

April 9, 2019

Last Modified

January 14, 2025

References (14)

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 14× in last 7d / 48× 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 104 total refreshes for this CVE.

  1. 2026-07-23 01:45 UTCEG score recompute
  2. 2026-07-22 22:26 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
  4. 2026-07-21 15:22 UTCEPSS rescore
  5. 2026-07-21 15:22 UTCEPSS rescore
  6. 2026-07-20 18:02 UTCOSV refresh
  7. 2026-07-20 17:04 UTCEPSS rescore
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  25. 2026-07-09 19:06 UTCEPSS rescore
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  1. 2026-07-08 15:11 UTCEPSS rescore
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  7. 2026-07-05 02:27 UTCEPSS rescore
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  9. 2026-07-03 13:26 UTCOSV refresh
  10. 2026-07-01 15:03 UTCEPSS rescore
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  30. 2026-06-19 19:23 UTCEPSS rescore
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  36. 2026-06-15 17:46 UTCEPSS rescore
  37. 2026-06-15 03:43 UTCOSV refresh
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  40. 2026-06-13 22:58 UTCEPSS rescore
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  43. 2026-06-11 13:58 UTCEPSS rescore
  44. 2026-06-10 22:16 UTCEPSS rescore
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  46. 2026-06-10 13:19 UTCEPSS rescore
  47. 2026-06-08 14:15 UTCEPSS rescore
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  52. 2026-06-06 13:45 UTCEPSS rescore
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  58. 2026-06-02 20:11 UTCEPSS rescore
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  69. 2026-05-27 20:46 UTCEG score recompute
  70. 2026-05-27 20:46 UTCVendor advisory
  71. 2026-05-27 20:46 UTCGHSA enrichment
  72. 2026-05-27 13:39 UTCEPSS rescore
  73. 2026-05-27 13:38 UTCEPSS rescore
  74. 2026-05-26 13:42 UTCEPSS rescore
  75. 2026-05-26 07:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2019-3870?
CVE-2019-3870 is a medium vulnerability published on April 9, 2019. A vulnerability was found in Samba from version (including) 4.9 to versions before 4.9.6 and 4.10.2. During the creation of a new Samba AD DC, files are created in a private subdirectory of the install location. This directory is typically mode 0700, that is owner (root) only access. However in…
When was CVE-2019-3870 disclosed?
CVE-2019-3870 was first published in the National Vulnerability Database on April 9, 2019, with the most recent update on January 14, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-3870 actively exploited?
CVE-2019-3870 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-3870?
CVE-2019-3870 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2019-3870?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-3870, 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.

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