CVE-2024-45273

MB connect line/Helmholz: Weak encryption of configuration file

HIGH

7.8

CVSS Score

Published: October 15, 2024 at 10:27 AM UTC

Updated: June 17, 2026 at 07:53 AM UTC

30 products affected across 2 vendorsmbCONNECT24mymbCONNECT24Mbnet.mini Firmware

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Severity

HIGH7.8

Exploit prediction

EPSS 0.1%

SSVC

No known exploit

Description

An unauthenticated local attacker can decrypt the devices config file and therefore compromise the device due to a weak implementation of the encryption used.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

MYREX24 V2 Virtual Server · Helmholz

95%

v < 2.16.3

Affected range stops below 2.16.3, so it looks safe — our inference, not a vendor statement

Rex 100 Firmware · Helmholz

95%

v < 2.3.1

Affected range stops below 2.3.1, so it looks safe — our inference, not a vendor statement

Rex 200 Firmware · Helmholz

95%

v < 8.2.1

Affected range stops below 8.2.1, so it looks safe — our inference, not a vendor statement

helmholz-rex-200 (same device)

Rex 250 Firmware · Helmholz

95%

v < 8.2.1

Affected range stops below 8.2.1, so it looks safe — our inference, not a vendor statement

helmholz-rex-250 (same device)

Rex 300 Firmware · Helmholz

95%

v ≤ 5.1.11

helmholz-rex-300 (same device)

mbCONNECT24 · Mbconnectline

95%

v ≤ 2.16.20.0.0 ≤ v ≤ 2.16.20.0.0

Affected range stops below 2.16.3, so it looks safe — our inference, not a vendor statement

Mbnet Firmware · Mbconnectline

95%

v < 8.2.1

Affected range stops below 8.2.1, so it looks safe — our inference, not a vendor statement

mbconnectline-mbnet (same device)

Mbnet HW1 Firmware · Mbconnectline

95%

v ≤ 5.1.110.0.0 ≤ v ≤ 5.1.110.0.0

Mbnet.mini Firmware · Mbconnectline

95%

v ≤ 2.2.13v < 2.3.10.0.0 ≤ v ≤ 2.2.130.0.0

Affected range stops below 2.3.1, so it looks safe — our inference, not a vendor statement

mbconnectline-mbnet-mini (same device)

Mbnet.rokey Firmware · Mbconnectline

95%

v < 8.2.1

Affected range stops below 8.2.1, so it looks safe — our inference, not a vendor statement

mbconnectline-mbnet-rokey (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

Third Party Advisory

Source: [email protected]

https://cert.vde.com/en/advisories/VDE-2024-056

Third Party Advisory

Source: [email protected]

https://cert.vde.com/en/advisories/VDE-2024-066

Third Party Advisory

Source: [email protected]

https://cert.vde.com/en/advisories/VDE-2024-068

Third Party Advisory

Source: [email protected]

https://cert.vde.com/en/advisories/VDE-2024-069

Source: af854a3a-2127-422b-91ae-364da2661108

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2024-062.txt

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-261CWE-326

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