CVE-2019-5021

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 6%CVSS: 9.8Exploit: NoneExposed: 0

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

Versions of the Official Alpine Linux Docker images (since v3.3) contain a NULL password for the root user. This vulnerability appears to be the result of a regression introduced in December of 2015. Due to the nature of this issue, systems deployed using affected versions of the Alpine Linux container which utilize Linux PAM, or some other mechanism which uses the system shadow file as an authentication database, may accept a NULL password for the root user.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
92.8%
KEV
Not listed

Published

May 8, 2019

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated Jun 22, 2026
No patch confirmed yet.
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20190510-0001/
generic

Docker Image Vulnerability - CVE-2019-5021 | Alpine Linux

https://alpinelinux.org/posts/Docker-image-vulnerability-CVE-2019-5021.html
generic
http://www.securityfocus.com/bid/108288
generic

TALOS-2019-0782 || Cisco Talos Intelligence Group - Comprehensive Threat Intelligence

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0782
generic

myF5

https://support.f5.com/csp/article/K25551452

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 43× 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.

  1. 2026-07-22 14:05 UTCEPSS rescore
  2. 2026-07-21 15:22 UTCEPSS rescore
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  4. 2026-07-20 17:04 UTCEPSS rescore
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  12. 2026-07-15 16:55 UTCEPSS rescore
  13. 2026-07-15 01:57 UTCEPSS rescore
  14. 2026-07-13 22:27 UTCEPSS rescore
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  20. 2026-07-11 08:24 UTCEPSS rescore
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  22. 2026-07-09 19:06 UTCEPSS rescore
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  1. 2026-07-06 16:25 UTCEPSS rescore
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  6. 2026-07-01 15:03 UTCEPSS rescore
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  8. 2026-06-30 23:20 UTCEPSS rescore
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  10. 2026-06-28 04:54 UTCEPSS rescore
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  17. 2026-06-23 21:31 UTCEPSS rescore
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  19. 2026-06-22 14:23 UTCEPSS rescore
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  21. 2026-06-21 14:54 UTCEPSS rescore
  22. 2026-06-21 14:54 UTCEPSS rescore
  23. 2026-06-21 01:57 UTCEPSS rescore
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  25. 2026-06-19 19:23 UTCEPSS rescore
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  27. 2026-06-18 17:50 UTCEPSS rescore
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  31. 2026-06-15 17:46 UTCEPSS rescore
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  34. 2026-06-13 22:58 UTCEPSS rescore
  35. 2026-06-12 23:09 UTCEPSS rescore
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  37. 2026-06-11 13:58 UTCEPSS rescore
  38. 2026-06-10 22:16 UTCEPSS rescore
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  40. 2026-06-10 13:19 UTCEPSS rescore
  41. 2026-06-08 14:15 UTCEPSS rescore
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  43. 2026-06-08 14:15 UTCEPSS rescore
  44. 2026-06-07 15:23 UTCEPSS rescore
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  46. 2026-06-06 13:45 UTCEPSS rescore
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  48. 2026-06-05 22:45 UTCEPSS rescore
  49. 2026-06-05 06:08 UTCEPSS rescore
  50. 2026-06-04 13:10 UTCEPSS rescore
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  52. 2026-06-02 20:11 UTCEPSS rescore
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  54. 2026-06-01 13:50 UTCEPSS rescore
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  56. 2026-05-31 22:29 UTCEPSS rescore
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  60. 2026-05-29 13:42 UTCEPSS rescore
  61. 2026-05-28 13:43 UTCEPSS rescore
  62. 2026-05-28 13:43 UTCEPSS rescore
  63. 2026-05-27 19:48 UTCEG score recompute
  64. 2026-05-27 19:48 UTCGHSA enrichment
  65. 2026-05-27 13:39 UTCEPSS rescore
  66. 2026-05-27 13:38 UTCEPSS rescore
  67. 2026-05-26 13:42 UTCEPSS rescore
  68. 2026-05-26 07:17 UTCEPSS rescore
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  71. 2026-05-24 16:47 UTCEPSS rescore

Frequently asked(5)

What is CVE-2019-5021?
CVE-2019-5021 is a critical vulnerability published on May 8, 2019. Versions of the Official Alpine Linux Docker images (since v3.3) contain a NULL password for the root user. This vulnerability appears to be the result of a regression introduced in December of 2015. Due to the nature of this issue, systems deployed using affected versions of the Alpine Linux…
When was CVE-2019-5021 disclosed?
CVE-2019-5021 was first published in the National Vulnerability Database on May 8, 2019, 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-2019-5021 actively exploited?
CVE-2019-5021 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-5021?
CVE-2019-5021 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-5021?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-5021, 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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