CVE-2023-4834Network attack vector

Device-information disclosure via improper access validation

Published Oct 16, 2023 · Updated Sep 16, 2024

Authorization bypass in mbCONNECT24 and related portals through 2.14.2 allows remote authenticated users to read other devices' metadata. The vendors describe improperly implemented access validation but do not disclose the affected request, endpoint, or authorization check. A low-privilege portal account is required, and the exposure is limited to non-critical device information associated with that account.

CVSS severity4.3
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in mbCONNECT24 and related portals through 2.14.2 allows remote authenticated users to read other devices' metadata. The vendors describe improperly implemented access validation but do not disclose the affected request, endpoint, or authorization check. A low-privilege portal account is required, and the exposure is limited to non-critical device information associated with that account.

The record

CVE
CVE-2023-4834
Published
Oct 16, 2023
Updated
Sep 16, 2024
Vendor
Helmholz GmbH & Co. KG
Product
myREX24.virtual
Classifications
CWE-269
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.14.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Helmholz GmbH & Co. KG · myREX24.virtualversion=0 <=2.14.2
Helmholz GmbH & Co. KG · myREX24version=0 <=2.14.2
MB connect line · mbCONNECT24version=0 <=2.14.2
MB connect line · mymbCONNECT24version=0 <=2.14.2

Published CVSS scores

4.3CERT@VDECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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