CVE-2026-12780

HIGH 7.8

AOMEI Backupper Kernel Driver amwrtdrv.sys access control

CVSS Score

7.8

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was determined in AOMEI Backupper up to 8.3.0. Impacted is an unknown function in the library amwrtdrv.sys of the component Kernel Driver. Executing a manipulation can lead to improper access controls. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CWE	CWE-284 CWE-266
Vendor	aomei
Product	backupper
Published	Jun 21, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

AOMEI / Backupper

8.0 8.1 8.2 8.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/372521 vuldb.com: https://vuldb.com/vuln/372521/cti vuldb.com: https://vuldb.com/cve/CVE-2026-12780 vuldb.com: https://vuldb.com/submit/835609 winslow1984.com: https://winslow1984.com/books/cve-collection/page/aomei-backupper-830-kernel-driver-amwrtdrvsys-local-privilege-escalation

Credits

🔍 winslow1984 (VulDB User) VulDB CNA Team