Critical Privilege Escalation Vulnerability Found in AOMEI Backupper

A critical security flaw, identified as CVE-2026-12780, has been discovered in the amwrtdrv.sys kernel driver of AOMEI Backupper software up to version 8.3.0. This improper access control vulnerability allows local attackers to escalate their privileges, posing a significant cybersecurity risk. The exploit has been publicly disclosed and is reportedly being actively used.