TI-2026-10922 Aliases CVE-2026-12778 GHSA-9fg6-8666-rx55

AOMEI Partition Assistant Kernel Driver ampa10.sys access control

HIGH 72CWE-266Published 2026-06-21 · Updated 2026-06-22

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Privilege escalation, Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266 and CWE-284.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00162 5th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
AOMEI	Partition Assistant	10.10.0; 10.10.1	—	No fix listed	CNA

Partition Assistant VendorAOMEI Affected 10.10.0; 10.10.1 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:aomei:partition_assistant::::::::	—	—	AOMEI

cpe:2.3:a:aomei:partition_assistant:*:*:*:*:*:*:*:* Versions — — ·AOMEI

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-12778
2026-10-03 Alias added: GHSA-9fg6-8666-rx55

References

Exploit 1

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

TI-2026-10924 AOMEI Backupper Kernel Driver amwrtdrv.sys access control CVSS 4.0HIGH 8.5
TI-2026-10923 AOMEI Dynamic Disk Manager Kernel Driver ddmdrv.sys access control CVSS 4.0HIGH 8.5
TI-2025-07882 Missing authentication in AOMEI Cyber Backup CVSS 3.0CRITICAL 9.8
TI-2025-07881 Missing authentication in AOMEI Cyber Backup CVSS 3.0CRITICAL 9.8
TI-2025-07883 Link following in AOMEI Backupper Workstation CVSS 3.0HIGH 7.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences