CVE-2026-12780: AOMEI Backupper Kernel Driver amwrtdrv.sys access control

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-21 · updated 2026-10-25
Weakness: CWE-266

Description

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.

Affected products

AOMEI Backupper: 8.0, 8.1, 8.2, 8.3.0

References

https://vuldb.com/cve/CVE-2026-12780
https://vuldb.com/submit/835609
https://vuldb.com/vuln/372521
https://vuldb.com/vuln/372521/cti
https://winslow1984.com/books/cve-collection/page/aomei-backupper-830-kernel-driver-amwrtdrvsys-local-privilege-escalation
https://www.kb.cert.org/vuls/id/687587

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