CVE-2026-40851
Command injection via USB
CVSS Score
8.4
EPSS Score
0.0%
EPSS Percentile
7th
A local attacker can perform a confusion attack on the cfgparser via a specially crafted file on an USB stick leading to code execution. This can result in a total loss of confidentiality, integrity and availability.
| CWE | CWE-1287 |
| Vendor | mb connect line |
| Product | mbnet/mbnet.rokey |
| Published | May 27, 2026 |
| Last Updated | May 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
MB connect line / mbNET/mbNET.rokey
0.0.0 ≤ 8.4.4
MB connect line / mbNET.mini
0.0.0 ≤ 3.0.2
MB connect line / mbNET/mbNET.rokey
8.4.4
MB connect line / mbNET.mini
3.0.2
Helmholz / REX200/250
0.0.0 ≤ 8.4.4
Helmholz / REX100
0.0.0 ≤ 3.0.2
Helmholz / REX200/250
8.4.4
Helmholz / REX100
3.0.2
References
Credits
Moritz Abrell from SySS GmbH Christian Zäske from SySS GmbH