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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.

PUBLISHED Reserved 2026-06-20 | Published 2026-06-21 | Updated 2026-06-21 | Assigner VulDB




HIGH: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 7.8CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
6.8AV:L/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Improper Access Controls

Incorrect Privilege Assignment

Product status

8.0
affected

8.1
affected

8.2
affected

8.3.0
affected

Timeline

2026-06-20:Advisory disclosed
2026-06-20:VulDB entry created
2026-06-20:VulDB entry last update

Credits

winslow1984 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/372521 (VDB-372521 | AOMEI Backupper Kernel Driver amwrtdrv.sys access control) vdb-entry

vuldb.com/vuln/372521/cti (VDB-372521 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-12780 (CVE-2026-12780 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/835609 (Submit #835609 | AOMEI AOMEI Backupper Kernel Driver amwrtdrv.sys 8.3.0 Local Privilege Escapation) third-party-advisory

winslow1984.com/...er-amwrtdrvsys-local-privilege-escalation exploit

cve.org (CVE-2026-12780)

nvd.nist.gov (CVE-2026-12780)

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