MBCONNECT24 · CVE-2026-60044 · Other
FIX → 2.21.0 ✓ verified
Backups created by MB connect line mbCONNECT24/mymbCONNECT24 and Helmholz myREX24V2/myREX24V2.virtual use a weak static password. An unauthenticated remote attacker can access their content (CVSS 7.5, confidentiality only). Fixed in 2.21.0. Reported by SySS GmbH; CERT@VDE coordinated.
first public Nov 10, 2026 · 2 sources
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Anyone running a self-hosted or hosted-by-you mbCONNECT24, mymbCONNECT24 (MB connect line) or myREX24V2 / myREX24V2.virtual (Helmholz) remote-maintenance portal on a version below 2.21.0. Backups these systems create are protected only by a weak static password, so anyone who can get at a backup can read it. Teams not running these products can skip it.
Who cares backups, ics, mbconnect24, mymbconnect24, myrex24v2, remote-maintenance, self-hosted
2.21.0 is affectedThe backups created by the application use a weak static password allowing an unauthenticated remote attacker to access their content. This can result in a total loss of confidentiality.
This page as .md · .json · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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Upgrade to 2.21.0
Update the instance to version 2.21.0 (vendor remediation in VDE-2026-079 and VDE-2026-141).