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TI-2026-10925 Aliases CVE-2026-12781GHSA-5497-893c-j3pf

EaseUS Partition Master Kernel Driver epmntdrv.sys access control

Priority HIGH 72CWE-266Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Privilege escalation, Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266 and CWE-284.

Summary

A vulnerability was identified in EaseUS Partition Master up to 14.5. The affected element is an unknown function in the library epmntdrv.sys of the component Kernel Driver. The manipulation leads to improper access controls. The attack needs to be performed locally. The exploit is publicly available and might be used. You should upgrade the affected component. The vendor explains: "We have confirmed that this issue was present only in older versions of the product. Our product has since been updated, and the issue has been resolved in the latest version, so it no longer exists."

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0016 5th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
EaseUSPartition Master14.0; 14.1; 14.2; 14.3; 14.4; 14.5—No fix listedCNA
  • Partition Master VendorEaseUS Affected 14.0; 14.1; 14.2; 14.3; 14.4; 14.5 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:easeus:partition_master:*:*:*:*:*:*:*:*——EaseUS
  • cpe:2.3:a:easeus:partition_master:*:*:*:*:*:*:*:* Versions — — ·EaseUS

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-12781
  2. 2026-10-03 Alias added: GHSA-5497-893c-j3pf

References

Exploit 1

Patch 1

  • TI-2026-10926 EaseUS Partition Master Kernel Driver EUEDKEPM.sys access control CVSS 4.0HIGH 8.5
  • TI-2022-26367 EaseUS Data Recovery - 'ensserver.exe' Unquoted Service Path CVSS 4.0HIGH 8.5
  • TI-2025-32263 The eudskacs.sys driver version 20250328 shipped with EaseUs Todo Backup 1.2.0.1 fails to… CVSS 3.1HIGH 7.8
  • TI-2023-15520 EaseUS Todo Backup may allow local privilege escalation CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences