CVE-2023-54050

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-12-24. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

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

ubifs: Fix memleak when insert_old_idx() failed

Following process will cause a memleak for copied up znode:

dirty_cow_znode zn = copy_znode(c, znode); err = insert_old_idx(c, zbr->lnum, zbr->offs); if (unlikely(err)) return ERR_PTR(err); // No one refers to zn.

Fetch a reproducer in [Link].

Function copy_znode() is split into 2 parts: resource allocation and znode replacement, insert_old_idx() is split in similar way, so resource cleanup could be done in error handling path without corrupting metadata(mem & disk). It's okay that old index inserting is put behind of add_idx_dirt(), old index is used in layout_leb_in_gaps(), so the two processes do not depend on each other.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

December 24, 2025

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

ubifs: Fix memleak when insert_old_idx() failed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ef9aac603659e9ffe7d69ae16e3f0fc0991a965b
generic

ubifs: Fix memleak when insert_old_idx() failed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cc29c7216d7f057eb0613b97dc38c7e1962a88d2
generic

ubifs: Fix memleak when insert_old_idx() failed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b5fda08ef213352ac2df7447611eb4d383cce929
generic

ubifs: Fix memleak when insert_old_idx() failed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a6da0ab9847779e05a7416c7a98148b549de69ef
generic

ubifs: Fix memleak when insert_old_idx() failed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/79079cebbeed624b9d01cfcf1e3254ae1a1f6e14
generic

ubifs: Fix memleak when insert_old_idx() failed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6f2eee5457bc48b0426dedfd78cdbdea241a6edb
generic

ubifs: Fix memleak when insert_old_idx() failed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/66e9f2fb3e753f820bec2a98e8c6387029988320
generic

ubifs: Fix memleak when insert_old_idx() failed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3ae75f82c33fa1b4ca2006b55c84f4ef4a428d4d

Vendor Advisories for CVE-2023-54050(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 4.19.283—osv

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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (33 versions)5.10.191-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.27-16.1.37-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.3.7-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.3.7-1—

Data Freshness Timeline

(refreshed 6× in last 7d / 27× 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 184 total refreshes for this CVE.

  1. 2026-09-20 20:14 UTCEPSS rescore
  2. 2026-09-20 20:14 UTCEPSS rescore
  3. 2026-09-18 19:26 UTCEPSS rescore
  4. 2026-09-16 14:06 UTCEPSS rescore
  5. 2026-09-16 05:11 UTCEPSS rescore
  6. 2026-09-16 05:11 UTCEPSS rescore
  7. 2026-09-15 03:08 UTCEPSS rescore
  8. 2026-09-14 05:49 UTCOSV refresh
  9. 2026-09-13 16:45 UTCEPSS rescore
  10. 2026-09-12 14:58 UTCEPSS rescore
  11. 2026-09-11 14:51 UTCEPSS rescore
  12. 2026-09-11 09:34 UTCEPSS rescore
  13. 2026-09-08 21:58 UTCEPSS rescore
  14. 2026-09-07 15:59 UTCEPSS rescore
  15. 2026-09-06 13:46 UTCEPSS rescore
  16. 2026-09-05 15:26 UTCEPSS rescore
  17. 2026-09-04 13:58 UTCEPSS rescore
  18. 2026-09-04 05:04 UTCEPSS rescore
  19. 2026-09-02 14:10 UTCEPSS rescore
  20. 2026-09-01 13:52 UTCEPSS rescore
  21. 2026-08-30 19:15 UTCEPSS rescore
  22. 2026-08-30 01:20 UTCEPSS rescore
  23. 2026-08-28 21:39 UTCEPSS rescore
  24. 2026-08-27 14:23 UTCEPSS rescore
  25. 2026-08-26 14:44 UTCEPSS rescore
Show 75 more
  1. 2026-08-26 06:43 UTCOSV refresh
  2. 2026-08-25 13:47 UTCEPSS rescore
  3. 2026-08-23 00:17 UTCEPSS rescore
  4. 2026-08-23 00:17 UTCEPSS rescore
  5. 2026-08-21 23:47 UTCEPSS rescore
  6. 2026-08-19 17:02 UTCEPSS rescore
  7. 2026-08-18 13:46 UTCEPSS rescore
  8. 2026-08-16 14:54 UTCEPSS rescore
  9. 2026-08-16 02:12 UTCEPSS rescore
  10. 2026-08-15 01:28 UTCEPSS rescore
  11. 2026-08-13 21:58 UTCEPSS rescore
  12. 2026-08-12 13:49 UTCEPSS rescore
  13. 2026-08-11 13:40 UTCEPSS rescore
  14. 2026-08-10 23:58 UTCEPSS rescore
  15. 2026-08-09 22:49 UTCEG score recompute
  16. 2026-08-09 22:49 UTCGHSA enrichment
  17. 2026-08-09 13:44 UTCEPSS rescore
  18. 2026-08-08 16:35 UTCEPSS rescore
  19. 2026-08-08 05:27 UTCEG score recompute
  20. 2026-08-08 05:27 UTCGHSA enrichment
  21. 2026-08-07 16:25 UTCEPSS rescore
  22. 2026-08-06 13:45 UTCEPSS rescore
  23. 2026-08-06 07:12 UTCEG score recompute
  24. 2026-08-06 07:11 UTCGHSA enrichment
  25. 2026-08-05 19:15 UTCEPSS rescore
  26. 2026-08-05 19:15 UTCEPSS rescore
  27. 2026-08-05 10:15 UTCEG score recompute
  28. 2026-08-05 10:15 UTCGHSA enrichment
  29. 2026-08-04 10:51 UTCEG score recompute
  30. 2026-08-04 10:50 UTCGHSA enrichment
  31. 2026-08-04 10:36 UTCEPSS rescore
  32. 2026-08-04 09:25 UTCEG score recompute▲ 7.80
  33. 2026-08-04 09:24 UTCGHSA enrichment
  34. 2026-08-04 09:20 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  35. 2026-08-03 10:34 UTCEPSS rescore
  36. 2026-08-02 02:25 UTCEPSS rescore
  37. 2026-08-02 02:25 UTCEPSS rescore
  38. 2026-07-30 16:26 UTCEPSS rescore
  39. 2026-07-30 01:29 UTCEPSS rescore
  40. 2026-07-28 15:34 UTCEPSS rescore
  41. 2026-07-28 15:34 UTCEPSS rescore
  42. 2026-07-27 03:39 UTCOSV refresh
  43. 2026-07-26 14:53 UTCEPSS rescore
  44. 2026-07-25 14:16 UTCEPSS rescore
  45. 2026-07-24 14:16 UTCEPSS rescore
  46. 2026-07-23 14:16 UTCEPSS rescore
  47. 2026-07-23 02:30 UTCEG score recompute
  48. 2026-07-22 23:16 UTCEG score recompute
  49. 2026-07-22 14:07 UTCEPSS rescore
  50. 2026-07-22 14:07 UTCEPSS rescore
  51. 2026-07-21 15:23 UTCEPSS rescore
  52. 2026-07-20 17:06 UTCEPSS rescore
  53. 2026-07-19 14:30 UTCEPSS rescore
  54. 2026-07-19 14:29 UTCEPSS rescore
  55. 2026-07-19 02:27 UTCEPSS rescore
  56. 2026-07-19 02:27 UTCEPSS rescore
  57. 2026-07-18 10:03 UTCEPSS rescore
  58. 2026-07-18 10:03 UTCEPSS rescore
  59. 2026-07-16 17:01 UTCEPSS rescore
  60. 2026-07-15 16:56 UTCEPSS rescore
  61. 2026-07-15 01:59 UTCEPSS rescore
  62. 2026-07-15 01:59 UTCEPSS rescore
  63. 2026-07-13 22:28 UTCEPSS rescore
  64. 2026-07-13 22:28 UTCEPSS rescore
  65. 2026-07-13 06:11 UTCEPSS rescore
  66. 2026-07-11 08:26 UTCEPSS rescore
  67. 2026-07-09 22:17 UTCOSV refresh
  68. 2026-07-09 19:08 UTCEPSS rescore
  69. 2026-07-08 15:13 UTCEPSS rescore
  70. 2026-07-07 13:45 UTCEPSS rescore
  71. 2026-07-07 13:44 UTCEPSS rescore
  72. 2026-07-06 16:26 UTCEPSS rescore
  73. 2026-07-06 16:26 UTCEPSS rescore
  74. 2026-07-06 02:22 UTCEPSS rescore
  75. 2026-07-06 02:22 UTCEPSS rescore

Related CVEs(same product)

Frequently asked(5)

What is CVE-2023-54050?
CVE-2023-54050 is a high vulnerability published on December 24, 2025. In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix memleak when insertoldidx() failed Following process will cause a memleak for copied up znode: dirtycowznode zn = copy_znode(c, znode); err = insertoldidx(c, zbr->lnum, zbr->offs); if (unlikely(err)) return ERR_PTR(err);…
When was CVE-2023-54050 disclosed?
CVE-2023-54050 was first published in the National Vulnerability Database on December 24, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-54050 actively exploited?
CVE-2023-54050 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 89.8% of all scored CVEs.
What is the CVSS score of CVE-2023-54050?
CVE-2023-54050 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2023-54050?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-54050, 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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