CVE-2021-47319

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2024-05-21. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

virtio-blk: Fix memory leak among suspend/resume procedure

The vblk->vqs should be freed before we call init_vqs() in virtblk_restore().

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
17.5%
KEV
Not listed

Published

May 21, 2024

Last Modified

December 24, 2024

References (18)

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-lts-xenial (4.4.0.273.279) @ xenial2026-05-24ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.273.307~14.04.1) @ trusty2026-05-24ubuntu
ubuntulinux-tools-aws (4.4.0.1186.190) @ xenial2026-05-24ubuntu
ubuntulinux-tools-fips (4.4.0.1119.120) @ xenial2026-05-24ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

All Vendor Advisories

(4)

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 13× in last 7d / 49× 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 103 total refreshes for this CVE.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-24 14:15 UTCEPSS rescore
  3. 2026-07-23 14:16 UTCEPSS rescore
  4. 2026-07-23 02:06 UTCEG score recompute
  5. 2026-07-22 22:53 UTCEG score recompute
  6. 2026-07-22 14:06 UTCEPSS rescore
  7. 2026-07-21 15:22 UTCEPSS rescore
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  10. 2026-07-19 14:29 UTCEPSS rescore
  11. 2026-07-19 02:27 UTCEPSS rescore
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  13. 2026-07-18 10:02 UTCEPSS rescore
  14. 2026-07-16 17:00 UTCEPSS rescore
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  16. 2026-07-15 16:55 UTCEPSS rescore
  17. 2026-07-15 01:58 UTCEPSS rescore
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  19. 2026-07-14 09:25 UTCOSV refresh
  20. 2026-07-13 22:27 UTCEPSS rescore
  21. 2026-07-13 06:11 UTCEPSS rescore
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  23. 2026-07-12 05:44 UTCEPSS rescore
  24. 2026-07-11 08:25 UTCEPSS rescore
  25. 2026-07-09 19:07 UTCEPSS rescore
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  1. 2026-07-09 19:07 UTCEPSS rescore
  2. 2026-07-08 15:12 UTCEPSS rescore
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  4. 2026-07-07 13:43 UTCEPSS rescore
  5. 2026-07-06 16:25 UTCEPSS rescore
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  7. 2026-07-06 02:21 UTCEPSS rescore
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  11. 2026-07-04 06:29 UTCEPSS rescore
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  13. 2026-07-01 15:04 UTCEPSS rescore
  14. 2026-06-30 23:20 UTCEPSS rescore
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  17. 2026-06-28 14:05 UTCEPSS rescore
  18. 2026-06-28 04:54 UTCEPSS rescore
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  20. 2026-06-27 03:07 UTCEPSS rescore
  21. 2026-06-27 03:06 UTCEPSS rescore
  22. 2026-06-26 10:09 UTCOSV refresh
  23. 2026-06-25 13:48 UTCEPSS rescore
  24. 2026-06-25 13:48 UTCEPSS rescore
  25. 2026-06-24 14:03 UTCEPSS rescore
  26. 2026-06-24 14:03 UTCEPSS rescore
  27. 2026-06-23 21:31 UTCEPSS rescore
  28. 2026-06-23 21:31 UTCEPSS rescore
  29. 2026-06-22 14:24 UTCEPSS rescore
  30. 2026-06-21 14:55 UTCEPSS rescore
  31. 2026-06-21 01:58 UTCEPSS rescore
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  33. 2026-06-19 19:24 UTCEPSS rescore
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  35. 2026-06-18 17:51 UTCEPSS rescore
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  40. 2026-06-15 17:46 UTCEPSS rescore
  41. 2026-06-14 23:15 UTCEPSS rescore
  42. 2026-06-14 23:15 UTCEPSS rescore
  43. 2026-06-12 23:10 UTCEPSS rescore
  44. 2026-06-11 13:58 UTCEPSS rescore
  45. 2026-06-10 22:16 UTCEPSS rescore
  46. 2026-06-10 13:20 UTCEPSS rescore
  47. 2026-06-08 17:11 UTCOSV refresh
  48. 2026-06-08 14:15 UTCEPSS rescore
  49. 2026-06-08 14:15 UTCEPSS rescore
  50. 2026-06-08 14:15 UTCEPSS rescore
  51. 2026-06-07 15:23 UTCEPSS rescore
  52. 2026-06-07 15:23 UTCEPSS rescore
  53. 2026-06-06 13:46 UTCEPSS rescore
  54. 2026-06-06 13:46 UTCEPSS rescore
  55. 2026-06-05 22:45 UTCEPSS rescore
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  57. 2026-06-05 06:09 UTCEPSS rescore
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  59. 2026-06-04 13:11 UTCEPSS rescore
  60. 2026-06-04 13:10 UTCEPSS rescore
  61. 2026-06-02 20:11 UTCEPSS rescore
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  63. 2026-06-01 13:50 UTCEPSS rescore
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  65. 2026-05-31 22:29 UTCEPSS rescore
  66. 2026-05-31 00:15 UTCEPSS rescore
  67. 2026-05-31 00:15 UTCEPSS rescore
  68. 2026-05-28 13:43 UTCEPSS rescore
  69. 2026-05-28 13:43 UTCEPSS rescore
  70. 2026-05-27 13:39 UTCEPSS rescore
  71. 2026-05-27 13:39 UTCEPSS rescore
  72. 2026-05-26 13:43 UTCEPSS rescore
  73. 2026-05-26 13:42 UTCEPSS rescore
  74. 2026-05-26 07:17 UTCEPSS rescore
  75. 2026-05-26 07:17 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2021-47319?
CVE-2021-47319 is a medium vulnerability published on May 21, 2024. In the Linux kernel, the following vulnerability has been resolved: virtio-blk: Fix memory leak among suspend/resume procedure The vblk->vqs should be freed before we call init_vqs() in virtblk_restore().
When was CVE-2021-47319 disclosed?
CVE-2021-47319 was first published in the National Vulnerability Database on May 21, 2024, with the most recent update on December 24, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-47319 actively exploited?
CVE-2021-47319 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-47319?
CVE-2021-47319 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2021-47319?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47319, 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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