A vulnerability categorized as critical has been discovered 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. This vulnerability is registered as CVE-2026-12780 . The attack needs to be launched locally. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.