CVE-2026-12778

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
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

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

A vulnerability has been found in AOMEI Partition Assistant up to 10.10.1. This vulnerability affects unknown code in the library ampa10.sys of the component Kernel Driver. Such manipulation leads to improper access controls. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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
1.7%
KEV
Not listed

Published

June 21, 2026

Last Modified

June 22, 2026

Advisory Details (1)

Auto-updated Jun 22, 2026
No patch confirmed yet.
generic

AOMEI Partition Assist... | Winslow Blog

https://winslow1984.com/books/cve-collection/page/aomei-partition-assistant-10101-kernel-driver-ampa10sys-local-privilege-escalation

Vendor Advisories for CVE-2026-12778(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 8× in last 7d / 76× 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.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:05 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:30 UTCEPSS rescore
  7. 2026-07-19 02:28 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-16 20:23 UTCGHSA enrichment
  10. 2026-07-16 17:02 UTCEPSS rescore
  11. 2026-07-16 05:26 UTCGHSA enrichment
  12. 2026-07-15 17:59 UTCGHSA enrichment
  13. 2026-07-15 06:22 UTCGHSA enrichment
  14. 2026-07-15 02:00 UTCEPSS rescore
  15. 2026-07-14 18:14 UTCGHSA enrichment
  16. 2026-07-14 06:47 UTCGHSA enrichment
  17. 2026-07-13 22:30 UTCEPSS rescore
  18. 2026-07-13 19:13 UTCGHSA enrichment
  19. 2026-07-13 07:47 UTCGHSA enrichment
  20. 2026-07-13 06:12 UTCEPSS rescore
  21. 2026-07-12 20:21 UTCGHSA enrichment
  22. 2026-07-12 08:52 UTCGHSA enrichment
  23. 2026-07-11 21:25 UTCGHSA enrichment
  24. 2026-07-11 09:59 UTCGHSA enrichment
  25. 2026-07-10 22:31 UTCGHSA enrichment
Show 60 more
  1. 2026-07-10 11:04 UTCGHSA enrichment
  2. 2026-07-09 23:14 UTCGHSA enrichment
  3. 2026-07-09 11:47 UTCGHSA enrichment
  4. 2026-07-09 00:17 UTCGHSA enrichment
  5. 2026-07-08 15:15 UTCEPSS rescore
  6. 2026-07-08 15:15 UTCEPSS rescore
  7. 2026-07-08 12:49 UTCGHSA enrichment
  8. 2026-07-08 00:11 UTCGHSA enrichment
  9. 2026-07-07 13:46 UTCEPSS rescore
  10. 2026-07-07 12:44 UTCGHSA enrichment
  11. 2026-07-07 01:17 UTCGHSA enrichment
  12. 2026-07-06 16:27 UTCEPSS rescore
  13. 2026-07-06 13:50 UTCGHSA enrichment
  14. 2026-07-06 02:23 UTCEPSS rescore
  15. 2026-07-06 02:22 UTCGHSA enrichment
  16. 2026-07-05 14:54 UTCGHSA enrichment
  17. 2026-07-05 03:27 UTCGHSA enrichment
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 16:00 UTCGHSA enrichment
  21. 2026-07-04 06:31 UTCEPSS rescore
  22. 2026-07-04 04:34 UTCGHSA enrichment
  23. 2026-07-03 17:02 UTCGHSA enrichment
  24. 2026-07-03 05:35 UTCGHSA enrichment
  25. 2026-07-02 17:53 UTCGHSA enrichment
  26. 2026-07-02 06:26 UTCGHSA enrichment
  27. 2026-07-01 18:59 UTCGHSA enrichment
  28. 2026-07-01 15:06 UTCEPSS rescore
  29. 2026-07-01 15:06 UTCEPSS rescore
  30. 2026-07-01 07:33 UTCGHSA enrichment
  31. 2026-06-30 23:22 UTCEPSS rescore
  32. 2026-06-30 20:06 UTCGHSA enrichment
  33. 2026-06-30 08:40 UTCGHSA enrichment
  34. 2026-06-29 21:14 UTCGHSA enrichment
  35. 2026-06-29 09:48 UTCGHSA enrichment
  36. 2026-06-28 22:21 UTCGHSA enrichment
  37. 2026-06-28 14:07 UTCEPSS rescore
  38. 2026-06-28 10:54 UTCGHSA enrichment
  39. 2026-06-28 04:56 UTCEPSS rescore
  40. 2026-06-28 04:56 UTCEPSS rescore
  41. 2026-06-27 23:26 UTCGHSA enrichment
  42. 2026-06-27 11:59 UTCGHSA enrichment
  43. 2026-06-27 03:08 UTCEPSS rescore
  44. 2026-06-27 00:32 UTCGHSA enrichment
  45. 2026-06-26 13:04 UTCGHSA enrichment
  46. 2026-06-26 01:38 UTCGHSA enrichment
  47. 2026-06-25 14:12 UTCGHSA enrichment
  48. 2026-06-25 02:45 UTCGHSA enrichment
  49. 2026-06-24 15:19 UTCGHSA enrichment
  50. 2026-06-24 14:05 UTCEPSS rescore
  51. 2026-06-24 03:52 UTCGHSA enrichment
  52. 2026-06-23 21:32 UTCEPSS rescore
  53. 2026-06-23 16:24 UTCGHSA enrichment
  54. 2026-06-23 04:57 UTCGHSA enrichment
  55. 2026-06-22 19:38 UTCNVD updateCVSS v4 → 7.1
  56. 2026-06-22 17:28 UTCGHSA enrichment
  57. 2026-06-22 06:00 UTCGHSA enrichment
  58. 2026-06-21 18:30 UTCGHSA enrichment
  59. 2026-06-21 07:01 UTCEG score recompute
  60. 2026-06-21 07:01 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-12778?
CVE-2026-12778 is a high vulnerability published on June 21, 2026. A vulnerability has been found in AOMEI Partition Assistant up to 10.10.1. This vulnerability affects unknown code in the library ampa10.sys of the component Kernel Driver. Such manipulation leads to improper access controls. The attack must be carried out locally. The exploit has been disclosed to…
When was CVE-2026-12778 disclosed?
CVE-2026-12778 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-2026-12778 actively exploited?
CVE-2026-12778 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-12778?
CVE-2026-12778 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-12778?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12778, 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-2026-12778

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