CVE-2026-12778Public exploit

Local privilege escalation via raw disk I/O

Published Jun 21, 2026 · Updated Jun 21, 2026

Improper access control in AOMEI Partition Assistant 10.10.0 and 10.10.1 allows local users to gain privileges through ampa10.sys. The driver exposes the \.\wowrt device to standard users and forwards raw disk reads and writes from kernel mode, bypassing Windows checks on protected physical disks. Standard local access is sufficient to alter filesystem structures, boot records, registry hives, or privileged files by sector offset.

CVSS severity7.8
High
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in AOMEI Partition Assistant 10.10.0 and 10.10.1 allows local users to gain privileges through ampa10.sys. The driver exposes the \.\wowrt device to standard users and forwards raw disk reads and writes from kernel mode, bypassing Windows checks on protected physical disks. Standard local access is sufficient to alter filesystem structures, boot records, registry hives, or privileged files by sector offset.

The record

CVE
CVE-2026-12778
Published
Jun 21, 2026
Updated
Jun 21, 2026
Vendor
AOMEI
Product
AOMEI Partition Assistant
Classifications
CWE-266, CWE-284, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.10.0
  2. Affected versionversion=10.10.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

AOMEI · AOMEI Partition Assistantversion=10.10.0; version=10.10.1

Published CVSS scores

7.1VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
6.8VulDBAV:L/AC:L/Au:S/C:C/I:C/A:C
7.8VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-266Incorrect Privilege Assignment
CWE-284Improper Access Control
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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