MB Connect Line mbNET.mini up to 2.3.2 Conftool out-of-bounds write

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.
6.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in MB Connect Line mbNET.mini up to 2.3.2 and classified as critical. The affected element is an unknown function of the component Conftool. Performing a manipulation results in out-of-bounds write. This vulnerability was named CVE-2025-41679. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in MB Connect Line mbNET.mini up to 2.3.2. It has been classified as critical. This affects an unknown part of the component Conftool. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. The summary by CVE is:

An unauthenticated remote attacker could exploit a buffer overflow vulnerability in the device causing a denial of service that affects only the network initializing wizard (Conftool) service.

The weakness was presented by F. Bruckmoser, M. Eder, J. Heigl, M. Heudorn, G. Hofmarcher, M. Kadlec, M. Pristauz-telsnigg, S. Resch, P. Schweinzer and M. Gschiel as VDE-2025-058. It is possible to read the advisory at certvde.com. This vulnerability is uniquely identified as CVE-2025-41679 since 04/16/2025. 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 2.3.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-22074). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CNA Base Score: 5.3
CNA Vector (CERTVDE): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: mbNET.mini 2.3.3

Timelineinfo

04/16/2025 CVE reserved
07/21/2025 +96 days Advisory disclosed
07/21/2025 +0 days VulDB entry created
11/07/2025 +109 days VulDB entry last update

Sourcesinfo

Advisory: VDE-2025-058
Researcher: F. Bruckmoser, M. Eder, J. Heigl, M. Heudorn, G. Hofmarcher, M. Kadlec, M. Pristauz-telsnigg, S. Resch, P. Schweinzer, M. Gschiel
Status: Confirmed

CVE: CVE-2025-41679 (🔒)
GCVE (CVE): GCVE-0-2025-41679
GCVE (VulDB): GCVE-100-317103
EUVD: 🔒

Entryinfo

Created: 07/21/2025 12:03
Updated: 11/07/2025 15:18
Changes: 07/21/2025 12:03 (66), 07/21/2025 14:26 (1), 11/07/2025 15:18 (12)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!