CVE-2019-15792

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under NVD CVSS v3. EPSS exploit probability: 1.1%, top 38% 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
Weaponized
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.1Exploit: NoneExposed: 0

A fix is available — apply it.

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() calls fdget(oldfd), then without further checks passes the resulting file* into shiftfs_real_fdget(), which casts file->private_data, a void* that points to a filesystem-dependent type, to a "struct shiftfs_file_info *". As the private_data is not required to be a pointer, an attacker can use this to cause a denial of service or possibly execute arbitrary code.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
—
EPSS
62.3%
KEV
Not listed

Published

April 24, 2020

Last Modified

November 21, 2024

References (6)

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-virtual (5.0.0.35.37) @ disco2026-05-27ubuntu
ubuntulinux-image-lowlatency (5.3.0.22.26) @ eoan2026-05-27ubuntu

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

(2)

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 12× 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 22:20 UTCEG score recompute
  2. 2026-07-22 14:05 UTCEPSS rescore
  3. 2026-07-21 15:22 UTCEPSS rescore
  4. 2026-07-21 15:22 UTCEPSS rescore
  5. 2026-07-20 17:04 UTCEPSS rescore
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  1. 2026-07-04 06:28 UTCEPSS rescore
  2. 2026-07-02 16:56 UTCEPSS rescore
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  5. 2026-06-30 23:20 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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  30. 2026-06-15 17:45 UTCEPSS rescore
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  37. 2026-06-10 22:16 UTCEPSS rescore
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  39. 2026-06-08 14:15 UTCEPSS rescore
  40. 2026-06-08 14:14 UTCEPSS rescore
  41. 2026-06-07 15:23 UTCEPSS rescore
  42. 2026-06-07 15:22 UTCEPSS rescore
  43. 2026-06-06 13:45 UTCEPSS rescore
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  45. 2026-06-05 22:45 UTCEPSS rescore
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  47. 2026-06-05 06:08 UTCEPSS rescore
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  49. 2026-06-04 13:10 UTCEPSS rescore
  50. 2026-06-04 13:10 UTCEPSS rescore
  51. 2026-06-02 20:11 UTCEPSS rescore
  52. 2026-06-01 13:50 UTCEPSS rescore
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  54. 2026-05-31 22:29 UTCEPSS rescore
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  56. 2026-05-31 00:14 UTCEPSS rescore
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  58. 2026-05-29 13:42 UTCEPSS rescore
  59. 2026-05-28 13:43 UTCEPSS rescore
  60. 2026-05-27 13:38 UTCEPSS rescore
  61. 2026-05-27 04:19 UTCEG score recompute
  62. 2026-05-27 04:19 UTCVendor advisory
  63. 2026-05-27 04:19 UTCGHSA enrichment
  64. 2026-05-26 13:42 UTCEPSS rescore
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  66. 2026-05-26 07:17 UTCEPSS rescore
  67. 2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-47693✓ verified
    First seen Nov 20, 2019

    Ubuntu 19.10 - Refcount Underflow and Type Confusion in shiftfs

    Open source ↗

Frequently asked(5)

What is CVE-2019-15792?
CVE-2019-15792 is a high vulnerability published on April 24, 2020. In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfsbtrfsioctlfdreplace() calls fdget(oldfd), then without further checks passes the resulting file into shiftfs_real_fdget(), which casts file->private_data, a void that points to a…
When was CVE-2019-15792 disclosed?
CVE-2019-15792 was first published in the National Vulnerability Database on April 24, 2020, 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-2019-15792 actively exploited?
CVE-2019-15792 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-15792?
CVE-2019-15792 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2019-15792?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-15792, 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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