High severity · published Jul 21, 2025
CVE-2025-41679
Unauthenticated Buffer Overflow in Conftool Service Leading to Denial of Service
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
R1
REX 100 · Helmholz
0.0.0 before 2.3.3 · source: vendor
MB
mbNET.mini · MB connect line
0.0.0 before 2.3.3 · source: vendor
MF
Mbnet.mini Firmware · Mbconnectline
before 2.3.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-41679
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-41679
Vendor Advisory
https://certvde.com/de/advisories/VDE-2025-058
Mailing List
http://seclists.org/fulldisclosure/2025/Jul/38
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