MBCONNECT24 · CVE-2026-60040 · Other
FIX → 2.21.0 ✓ verified
An unauthenticated remote attacker can cause a denial of service in the backup creation function of the web backend (CWE-770, resource allocation without limits). Vendor advisories rate it 7.5 (CVSS 3.1) with total loss of availability. Fixed in firmware 2.21.0. No exploitation or PoC is reported in the advisories.
first public Nov 10, 2026 · 2 sources
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Teams that run their own MB connect line mbCONNECT24/mymbCONNECT24 or Helmholz myREX24V2/myREX24V2.virtual remote-access servers on firmware below 2.21.0. Anyone who can reach the web backend can trigger it without logging in. Everyone on 2.21.0 or later can skip it.
Not affected if firmware-2.21.0-or-later, not-internet-exposed
Who cares backend, backup, dos, helmholz, industrial, mb-connect-line, mbconnect24, mymbconnect24, myrex24, remote-access, unauthenticated
An unauthenticated remote attacker can perform a DoS in the backends backup creation function. This can result in a total loss of availability.
This page as .md · .json · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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2.21.0 is affectedUpgrade to 2.21.0
Update the instance to firmware 2.21.0 or later (the vendor's remediation).