CVE-2026-40852

highpriority · track · 0EPSS 0.004 · 31 %ileDEEU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.37% (31st) EPSS

CVSS 7.2 · high

Is it mine?

20 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · helmholz_psirt · mb_connect_line_psirt

EPSS · scored 2026-10-26

A highly authenticated attacker can alter the config generator injecting a payload into future created configurations. The device is not correctly checking this configuration value before passing it to an system execute leading to code execution. This can result in a total loss of confidentiality, integrity and availability.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedmb_connect_line_psirt
Update: - mbNET/mbNET.rokey: 8.4.5 - mbNET.mini: 3.0.3
Fixedhelmholz_psirt
Update: - REX200/250: 8.4.5 - REX100: 3.0.3

cvss

Technical severity, 0–10. One row per scoring source.

7.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–7.2

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · info@cert.vde.comexploitability 1.2 · impact 5.9

v3.16.6mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · Helmholz PSIRT

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · MB connect line PSIRT

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USCWE-78USCWE-78US

affected products (20)

Products and version ranges known to be affected.

REX100≤ 3.0.2enisa_euvdEU
REX100≤ 0.0.0 ≤3.0.2enisa_euvdEU
REX200/250≤ 8.4.4enisa_euvdEU
REX200/250≤ 0.0.0 ≤8.4.4enisa_euvdEU
mbNET.mini≤ 0.0.0 ≤3.0.2enisa_euvdEU
mbNET.mini≤ 3.0.2enisa_euvdEU
mbNET/mbNET.rokey≤ 0.0.0 ≤8.4.4enisa_euvdEU
mbNET/mbNET.rokey≤ 8.4.4enisa_euvdEU
Firmware 3.0.2 installed on MB connect line mbNET.miniall versionshelmholz_psirtDEcpe:2.3:o:helmholz:rex100:3.0.2:*:*:*:*:*:*:*
Firmware 3.0.3 installed on MB connect line mbNET.miniall versionsfixedhelmholz_psirtDEcpe:2.3:o:helmholz:rex100:3.0.3:*:*:*:*:*:*:*
Firmware 8.4.4 installed on Helmholz REX200/250all versionshelmholz_psirtDEcpe:2.3:o:helmholz:rex200_250:8.4.4:*:*:*:*:*:*:*
Firmware 8.4.5 installed on MB connect line mbNET/mbNET.rokeyall versionsfixedhelmholz_psirtDEcpe:2.3:o:helmholz:rex200_250:8.4.5:*:*:*:*:*:*:*
Firmware <=3.0.2 installed on Helmholz REX100all versionshelmholz_psirtDE
Firmware <=8.4.4 installed on Helmholz REX200/250all versionshelmholz_psirtDE
Firmware 3.0.2 installed on MB connect line mbNET.miniall versionsmb_connect_line_psirtDEcpe:2.3:o:mb_connect_line:mbNET.mini:3.0.2:*:*:*:*:*:*:*
Firmware 3.0.3 installed on MB connect line mbNET.miniall versionsfixedmb_connect_line_psirtDEcpe:2.3:o:mb_connect_line:mbNET.mini:3.0.3:*:*:*:*:*:*:*
Firmware 8.4.4 installed on MB connect line mbNET/mbNET.rokeyall versionsmb_connect_line_psirtDEcpe:2.3:o:mb_connect_line:mbNET:8.4.4:*:*:*:*:*:*:*
Firmware 8.4.5 installed on MB connect line mbNET/mbNET.rokeyall versionsfixedmb_connect_line_psirtDEcpe:2.3:o:mb_connect_line:mbNET:8.4.5:*:*:*:*:*:*:*
Firmware <=3.0.2 installed on MB connect line mbNET.miniall versionsmb_connect_line_psirtDE
Firmware <=8.4.4 installed on MB connect line mbNET/mbNET.rokeyall versionsmb_connect_line_psirtDE

advisories (2)

Vendor and ecosystem advisories describing this.

VDE-2026-054MB connect line: Multiple vulnerabilities in mbNET/mbNET.rokey/mbNET.mini2026-05-27csaf · mb_connect_line_psirtDE
Two command injection vulnerabilities have been discovered in MB connect line mbNET/mbNET.rokey/mbNET.mini.
VDE-2026-059Helmholz: Multiple vulnerabilities in REX100/REX200/REX2502026-05-27csaf · helmholz_psirtDE
Two command injection vulnerabilities have been discovered in Helmholz REX100/REX200/REX250.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd helmholz_psirt mb_connect_line_psirt NVD CVE.org MITRE

published 2026-05-27modified 2026-10-26

references (4)

External citations — patches, advisories, analysis.

scry

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