vciy

CVE-2024-45273

INDEX BUILT · 2026-09-20

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MB connect line/Helmholz: Weak encryption of configuration file

CVE-2024-452734 of 4 sources documented this
29

rank 29 = 0 + 20 + 0 + 9 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00093  ·  without this subject the record ranks 29

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.8, from NVD  ·  without this subject the record ranks 9

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 29

How much of the world it touches

NVD CPE configurations

15 products in the CPE ranges  ·  without this subject the record ranks 20

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 29

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4,640over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$4,640 = $4.99M incident cost x 1 exposure x 0.00093 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.00093EPSSNOT IN KEVas of 2026-09-20
Severity8.4 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2024-10-16, 693 days at 0.00, as of 2026-09-09. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Sources disagree here.

Severity score
CERTVDE8.4 HIGHreceipt
NVD7.8 HIGHreceipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running MB connect line mbNET.mini? Check your version

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Harm, if it fires from the vector and the weakness

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Reachneeds local access · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-261 Weak Encoding for Passwordreceipt
Published consequencesCWE-261: Access Control: Gain Privileges or Assume Identity[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by branchrex 2.3.1; rex 8.2.1; myrex24 v2 virtual server 2.16.3; mbconnect24 2.16.3; mbnet firmware 8.2.1; mbnet.mini firmware 2.3.1receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA8.4 HIGHreceipt
CVSS, NVD7.8 HIGHreceipt
Exploit probability0.00093 · top 99% of all CVEsreceipt
Blast breadth9 products across 2 vendorsderived
Assigned byCERTVDEreceipt
Recorded changes24 · last 17 Sep 2026derived

Affected & Fixed Versions as published

Affected productMB connect line mbNET.mini; MB connect line mbNET/mbNET.rokey; MB connect line mbNET HW1; MB connect line mbSPIDER; MB connect line mbCONNECT24; MB connect line mymbCONNECT24; Helmholz REX100…receipt
Published rangesmbconnectline mbnet.mini firmware < 2.3.1; helmholz myrex24 v2 virtual server < 2.16.3; helmholz rex 300 firmware <= 5.1.11; helmholz rex 200 firmware < 8.2.1receipt
Show all 15 published ranges
mbconnectline mbnet.mini firmware < 2.3.1
helmholz myrex24 v2 virtual server < 2.16.3
helmholz rex 300 firmware <= 5.1.11
helmholz rex 200 firmware < 8.2.1
helmholz rex 250 firmware < 8.2.1
helmholz rex 100 firmware < 2.3.1
mbconnectline mbconnect24 < 2.16.3
mbconnectline mymbconnect24 < 2.16.3
mbconnectline mbspider mdh 905 firmware <= 2.6.5
mbconnectline mbspider mdh 915 firmware <= 2.6.5
mbconnectline mbspider mdh 906 firmware <= 2.6.5
mbconnectline mbspider mdh 916 firmware <= 2.6.5
mbconnectline mbnet hw1 firmware <= 5.1.11
mbconnectline mbnet firmware < 8.2.1
mbconnectline mbnet.rokey firmware < 8.2.1

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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Attack path

Local accessno credentials, no interactionHelmholz REX100CWE-261 weaknessFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-261data compromise

What it is stated by the CNA

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

NVD's analysis a second authority

severity
7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-261; CWE-326
affected versions
mbconnectline mbnet.mini firmware < 2.3.1; helmholz myrex24 v2 virtual server < 2.16.3; helmholz rex 300 firmware <= 5.1.11; and 12 more, listed in full below
also scored by
[email protected] 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The CNA scored it 8.4 and NVD 7.8. Both are shown because both were published; we do not pick one.

check it yourself cert.vde.com cert.vde.com cert.vde.com cert.vde.com receipt

Movement the material steps

16 Oct 20240.00050
17 Mar 20250.00024 · scoring model v2025.03.14
15 Jun 20260.00093 · scoring model v2026.06.15
9 Sep 20260.00093

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 24 observations
16 Oct 20240.00050
18 Oct 20240.00042
17 Mar 20250.00024
19 Mar 20250.00013
25 Mar 20250.00016
29 Mar 20250.00022
30 Mar 20250.00016
15 Apr 20250.00012
11 May 20250.00014
1 Jul 20250.00015
11 Jul 20250.0002
11 Aug 20250.00027
14 Sep 20250.00035
18 Nov 20250.00047
21 Nov 20250.00035
23 Nov 20250.00075
24 Nov 20250.00089
27 Nov 20250.00077
30 Nov 20250.00059
18 Feb 20260.00064
6 Mar 20260.00087
15 Jun 20260.00093
22 Jul 20260.00092
9 Sep 20260.00093

24 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00093Published2024-10-15Index as of2026-09-09

Exploit probability more than doubled between 2025-11-21 and 2025-11-23 (0.00035 → 0.00075) and the record had been public for 1 year, 10 months when this index was last written.

Published 2024-10-15 receipt · Index as of 2026-09-09 derived

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