CVE-2026-18188: data master from 4.1.0.rhu2 (inclusive), through 4.3.3.run1 (inclusive), from 5.0.0.ra82 (inclusive), before…

Affected technology

data master · from 4.1.0.rhu2 (inclusive), through 4.3.3.run1 (inclusive)
asustor

data master · from 5.0.0.ra82 (inclusive), before 5.1.4.rjv2 (exclusive)
asustor

ADM · 5.0.0 through 5.1.3.RI81, 4.1.0 through 4.3.3.RUN1
ASUSTOR Inc.

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An authenticated attacker can exploit this issue to disclose memory information or cause denial of service of the affected backup component. Vendor/CNA’s CVSS 4.0 assessment (base score 7.1/10) rates confidentiality impact as low; integrity impact as none; availability impact as high.