CVE-2026-56129

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-25. a secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

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

Generic IO & Memory Access driver for PCs provided by TOSHIBA CORPORATION and Dynabook Inc. exposes its IOCTL with insufficient access control. A logged-in user with no administrative privilege may access physical memory.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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%
Automatability30% × 15%
EPSS PROB
0.2%
EPSS %ILE
5th
KEV
Not listed

Published

June 25, 2026

Last Modified

June 25, 2026

Advisory Details (3)

Auto-updated Jun 26, 2026
No fix on record yet.
generic

JVNVU#91051826: Generic IO & Memory Access driver for TOSHIBA and Dynabook PCs exposes its IOCTL with insufficient access control

https://jvn.jp/en/vu/JVNVU91051826/
generic

Product Security Advisory

https://global.sharp/corporate/info/product-security/advisory-list/2026-003/
generic

製品セキュリティアドバイザリ｜製品セキュリティ：シャープ株式会社

https://corporate.jp.sharp/info/product-security/advisory-list/2026-003/

Vendor Advisories for CVE-2026-56129(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 32× 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 180 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56129?
CVE-2026-56129 is a medium vulnerability published on June 25, 2026. Generic IO & Memory Access driver for PCs provided by TOSHIBA CORPORATION and Dynabook Inc. exposes its IOCTL with insufficient access control. A logged-in user with no administrative privilege may access physical memory.
When was CVE-2026-56129 disclosed?
CVE-2026-56129 was first published on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56129 actively exploited?
CVE-2026-56129 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (5th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56129?
CVE-2026-56129 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56129?
No fix for CVE-2026-56129 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-56129 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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