MB connect line/Helmholz mbCONNECT24/mymbCONNECT24/myREX24/myREX24.virtual prior 2.16.5 authorization

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in MB connect line/Helmholz mbCONNECT24, mymbCONNECT24, myREX24 and myREX24.virtual. It has been rated as critical. Impacted is an unknown function. This manipulation causes authorization. This vulnerability is tracked as CVE-2025-3091. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in MB connect line/Helmholz mbCONNECT24, mymbCONNECT24, myREX24 and myREX24.virtual. It has been declared as critical. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An low privileged remote attacker in possession of the second factor for another user can login as that user without knowledge of the other user`s password.

The weakness was disclosed by Irwin Przeperski as VDE-2025-035. It is possible to read the advisory at certvde.com. This vulnerability is known as CVE-2025-3091 since 04/01/2025. The exploitation appears to be difficult. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.16.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19010). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (CERTVDE): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: mbCONNECT24/mymbCONNECT24/myREX24/myREX24.virtual 2.16.5

Timelineinfo

04/01/2025 🔍
06/24/2025 +84 days 🔍
06/24/2025 +0 days 🔍
06/27/2025 +3 days 🔍

Sourcesinfo

Advisory: VDE-2025-035
Researcher: Irwin Przeperski
Status: Confirmed

CVE: CVE-2025-3091 (🔍)
GCVE (CVE): GCVE-0-2025-3091
GCVE (VulDB): GCVE-100-313747
EUVD: 🔍

Entryinfo

Created: 06/24/2025 14:25
Updated: 06/27/2025 08:29
Changes: 06/24/2025 14:25 (30), 06/24/2025 14:26 (33), 06/24/2025 18:24 (1), 06/27/2025 08:29 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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