CVE-2023-54285

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-12-30. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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:

iomap: Fix possible overflow condition in iomap_write_delalloc_scan

folio_next_index() returns an unsigned long value which left shifted by PAGE_SHIFT could possibly cause an overflow on 32-bit system. Instead use folio_pos(folio) + folio_size(folio), which does this correctly.

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
8%
KEV
Not listed

Published

December 30, 2025

Last Modified

August 5, 2026

Advisory Details (3)

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

iomap: Fix possible overflow condition in iomap_write_delalloc_scan - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/eee2d2e6ea5550118170dbd5bb1316ceb38455fb
generic

iomap: Fix possible overflow condition in iomap_write_delalloc_scan - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5c281b0c5d18c8eeb1cfd5023f4adb153e6d1240
generic

iomap: Fix possible overflow condition in iomap_write_delalloc_scan - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0c6cf409093f307ee05114f834516730c0da5b21

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.1.162—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
linux-6.16.1.106-3~deb11u1 ... 6.1.159-1~deb11u1 (14 versions)6.1.162-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (46 versions)6.1.162-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.5.6-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.5.6-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 28× 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 154 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-54285?
CVE-2023-54285 is a high vulnerability published on December 30, 2025. In the Linux kernel, the following vulnerability has been resolved: iomap: Fix possible overflow condition in iomapwritedelalloc_scan folionextindex() returns an unsigned long value which left shifted by PAGE_SHIFT could possibly cause an overflow on 32-bit system. Instead use foliopos(folio) +…
When was CVE-2023-54285 disclosed?
CVE-2023-54285 was first published in the National Vulnerability Database on December 30, 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-2023-54285 actively exploited?
CVE-2023-54285 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 91.8% of all scored CVEs.
What is the CVSS score of CVE-2023-54285?
CVE-2023-54285 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2023-54285?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-54285, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-54285

Explore →

Is Your Infrastructure Affected by CVE-2023-54285?

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

Start Free Scan →Browse All CVEs