CVE-2026-12781

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-21. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 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.

A vulnerability was identified in EaseUS Partition Master up to 14.5. The affected element is an unknown function in the library epmntdrv.sys of the component Kernel Driver. The manipulation leads to improper access controls. The attack needs to be performed locally. The exploit is publicly available and might be used. You should upgrade the affected component. The vendor explains: "We have confirmed that this issue was present only in older versions of the product. Our product has since been updated, and the issue has been resolved in the latest version, so it no longer exists."

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
6%
KEV
Not listed

Published

June 21, 2026

Last Modified

June 22, 2026

Advisory Details (2)

Auto-updated Jun 21, 2026
No patch confirmed yet.
generic

EaseUS Partition Master | Best Partition Software for All Windows Users.

https://www.easeus.com/partition-manager/
generic

EaseUS Partition Maste... | Winslow Blog

https://winslow1984.com/books/cve-collection/page/easeus-partition-master-145-kernel-driver-epmntdrvsys-local-privilege-escalation

Vendor Advisories for CVE-2026-12781(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 37× 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 209 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-12781?
CVE-2026-12781 is a high vulnerability published on June 21, 2026. A vulnerability was identified in EaseUS Partition Master up to 14.5. The affected element is an unknown function in the library epmntdrv.sys of the component Kernel Driver. The manipulation leads to improper access controls. The attack needs to be performed locally. The exploit is publicly…
When was CVE-2026-12781 disclosed?
CVE-2026-12781 was first published in the National Vulnerability Database on June 21, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12781 actively exploited?
CVE-2026-12781 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 94.4% of all scored CVEs.
What is the CVSS score of CVE-2026-12781?
CVE-2026-12781 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-12781?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12781, 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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