Access Control Vulnerability in EaseUS Partition Master Kernel Driver
CVE-2026-12781

8.5HIGH

Key Information:

Vendor

Easeus

Status
Partition Master
Vendor
CVE Published:
21 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12781?

A vulnerability exists in the EaseUS Partition Master due to improper access controls within the kernel driver epmntdrv.sys, affecting versions up to 14.5. This vulnerability requires local exploitation and can potentially allow unauthorized users to manipulate system components. The vendor has confirmed that this issue was only present in older versions and has since resolved it in the latest update, ensuring the safety of the users. It is crucial for users of the affected software to upgrade to the latest version to mitigate any risks associated with this vulnerability.

Affected Version(s)

Partition Master 14.0

Partition Master 14.1

Partition Master 14.2

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-2026-12781 - Proof of Concept

References

https://vuldb.com/vuln/372522
vdb-entry
https://vuldb.com/vuln/372522/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12781
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
.