CVE-2026-18759 An improper authentication and path traversal vulnerability exists in ASUSTOR Backup Plan and ASUSTOR EZ Sync.

The background service of ABP or AES runs as NT AUTHORITY\SYSTEM and implements a file-based inter-process communication IPC mechanism protected by AES encryption. Because the encryption key file is readable by standard users and protected using DPAPI. Any authenticated local user can recover the...

CVE-2026-18759

CVE-2026-18759 affects ASUSTOR Backup Plan (ABP) and ASUSTOR EZ Sync (AES): a file-based IPC protected by AES can be abused by a local authenticated user to recover the IPC key (readable by standard users, DPAPI-protected) and forge IPC requests. Combined with an insufficient substring check for ...