VDB-313743 · CVE-2025-3090 · VDE-2025-034

MB connect line/Helmholz mbCONNECT24/mymbCONNECT24/myREX24/myREX24.virtual up to 2.17.x missing authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.6	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in MB connect line/Helmholz mbCONNECT24, mymbCONNECT24, myREX24 and myREX24.virtual up to 2.17.x and classified as critical. Affected by this issue is some unknown functionality. Performing a manipulation results in missing authentication. This vulnerability was named CVE-2025-3090. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in MB connect line/Helmholz mbCONNECT24, mymbCONNECT24, myREX24 and myREX24.virtual up to 2.17.x. This affects an unknown part. The manipulation with an unknown input leads to a missing authentication vulnerability. CWE is classifying the issue as CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An unauthenticated remote attacker can obtain limited sensitive information and/or DoS the device due to missing authentication for critical function.

It is possible to read the advisory at certvde.com. This vulnerability is uniquely identified as CVE-2025-3090 since 04/01/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.18.0 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.2
CNA Vector (CERTVDE): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: mbCONNECT24/mymbCONNECT24/myREX24/myREX24.virtual 2.18.0

Timelineinfo

04/01/2025 CVE reserved
06/24/2025 +84 days Advisory disclosed
06/24/2025 +0 days VulDB entry created
06/27/2025 +3 days VulDB entry last update

Sourcesinfo

Advisory: VDE-2025-034
Status: Confirmed

CVE: CVE-2025-3090 (🔒)
GCVE (CVE): GCVE-0-2025-3090
GCVE (VulDB): GCVE-100-313743

Entryinfo

Created: 06/24/2025 10:25
Updated: 06/27/2025 08:29
Changes: 06/24/2025 10:25 (64), 06/27/2025 08:29 (1)
Complete: 🔍
Cache ID: 216::103