| Titolo | EaseUS Partition Master Kernel Driver EUEDKEPM.sys 14.5 Local Privilege Escapation |
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| Descrizione | EaseUS Partition Master installs EUEDKEPM.sys, a raw disk forwarding kernel driver that exposes a device path of the form \\.\EUEDKEPM\<disk>. A standard local user can open this device and issue raw reads and writes against a caller-selected physical disk number.
In this validation, a standard user at Medium Integrity could not directly read or write an administrator-only test file and could not directly open the underlying raw disk. The same user then used \\.\EUEDKEPM\1 to read the file's NTFS data clusters from a controlled temporary VHD and to overwrite the same protected file data. Administrator readback confirmed the write marker in the protected file.
This is a local Windows access-control bypass. The driver performs lower-disk I/O in kernel mode and exposes privileged raw disk functionality to an unprivileged caller. An unprivileged user can exploit arbitrary read/write primitives over protected file resources to achieve local privilege escalation. |
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| Fonte | ⚠️ https://winslow1984.com/books/cve-collection/page/easeus-partition-master-145-kernel-driver-euedkepmsys-local-privilege-escalation |
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| Utente | winslow1984 (UID 79140) |
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| Sottomissione | 22/05/2026 07:35 (1 mese fa) |
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| Moderazione | 20/06/2026 11:40 (29 days later) |
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| Stato | Accettato |
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| Voce VulDB | 372523 [EaseUS Partition Master fino a 14.5 Kernel Driver EUEDKEPM.sys escalationi di privilegi] |
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| Punti | 20 |
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