Access Control Vulnerability in AOMEI Backupper Kernel Driver
CVE-2026-12780

8.5HIGH

Key Information:

Vendor

Aomei

Status
Backupper
Vendor
CVE Published:
21 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12780?

A vulnerability exists in the AOMEI Backupper software, specifically within the kernel driver amwrtdrv.sys. This issue impacts an unspecified function within the driver, allowing for improper access controls to be exploited. An attacker needs to execute the exploit locally, which poses a significant risk if an unauthorized user gains access to the system. Publicly disclosed, this vulnerability underscores the importance of maintaining up-to-date software and highlights the need for AOMEI to respond to security disclosures promptly.

Affected Version(s)

Backupper 8.0

Backupper 8.1

Backupper 8.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-12780 - Proof of Concept

References

https://vuldb.com/vuln/372521
vdb-entry
https://vuldb.com/vuln/372521/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12780
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

winslow1984 (VulDB User)
VulDB CNA Team
.