CVE-2023-53804

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-12-09. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 4 sources updated this week
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:

nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()

During unmount process of nilfs2, nothing holds nilfs_root structure after nilfs2 detaches its writer in nilfs_detach_log_writer(). However, since nilfs_evict_inode() uses nilfs_root for some cleanup operations, it may cause use-after-free read if inodes are left in "garbage_list" and released by nilfs_dispose_list() at the end of nilfs_detach_log_writer().

Fix this issue by modifying nilfs_evict_inode() to only clear inode without additional metadata changes that use nilfs_root if the file system is degraded to read-only or the writer is detached.

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
3%
KEV
Not listed

Published

December 9, 2025

Last Modified

August 5, 2026

Advisory Details (8)

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

nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fb8e8d58f116d069e5939e1f786ac84e7fa4533e
generic

nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f31e18131ee2ce80a4da5c808221d25b1ae9ad6d
generic

nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b8427b8522d9ede53015ba45a9978ba68d1162f5
generic

nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/acc2a40e428f12780004e1e9fce4722d88f909fd
generic

nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9b5a04ac3ad9898c4745cba46ea26de74ba56a8e
generic

nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6b4205ea97901f822004e6c8d59484ccfda03faa
generic

nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2a782ea8ebd712a458466e3103e2881b4f886cb5
generic

nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/116d53f09ff52e6f98e3fe1f85d8898d6ba26c68

Vendor Advisories for CVE-2023-53804(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 @ 4.14.316—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.

Data Freshness Timeline

(refreshed 15× in last 7d / 50× 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 140 total refreshes for this CVE.

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

Related CVEs(same product)

Frequently asked(5)

What is CVE-2023-53804?
CVE-2023-53804 is a high vulnerability published on December 9, 2025. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nilfsroot in nilfsevict_inode() During unmount process of nilfs2, nothing holds nilfs_root structure after nilfs2 detaches its writer in nilfsdetachlog_writer(). However, since nilfsevictinode()…
When was CVE-2023-53804 disclosed?
CVE-2023-53804 was first published in the National Vulnerability Database on December 9, 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-2023-53804 actively exploited?
CVE-2023-53804 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 97.5% of all scored CVEs.
What is the CVSS score of CVE-2023-53804?
CVE-2023-53804 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2023-53804?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-53804, 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

Explore the affected products and dependency analysis for CVE-2023-53804

Explore →

Is Your Infrastructure Affected by CVE-2023-53804?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs