Command injection via USB

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Summary

CVECVE-2026-40851
StatePUBLISHED
AssignerCERTVDE
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 09:16:31 UTC
Updated2026-05-27 14:53:22 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 8.4 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000220000 probability, percentile 0.066060000 (date 2026-05-31)

Problem Types: CWE-1287 | CWE-1287 CWE-1287 Improper Validation of Specified Type of Input

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MB Connect Line MbNET/mbNET.rokey affected 0.0.0 8.4.4 semver Not specified
CNA MB Connect Line MbNET.mini affected 0.0.0 3.0.2 semver Not specified
CNA MB Connect Line MbNET/mbNET.rokey affected 8.4.4 Not specified
CNA MB Connect Line MbNET.mini affected 3.0.2 Not specified
CNA Helmholz REX200/250 affected 0.0.0 8.4.4 semver Not specified
CNA Helmholz REX100 affected 0.0.0 3.0.2 semver Not specified
CNA Helmholz REX200/250 affected 8.4.4 Not specified
CNA Helmholz REX100 affected 3.0.2 Not specified

References

ReferenceSourceLinkTags
www.certvde.com/en/advisories/VDE-2026-054 [email protected] www.certvde.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Moritz Abrell from SySS GmbH (en)

CNA: Christian Zäske from SySS GmbH (en)

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