CVE-2025-41679 Unauthenticated Buffer Overflow in Conftool Service Leading to Denial of Service
Unauthenticated remote attackers can cause a denial of service in the Conftool service via a buffer overflow in Helmholz and MB connect line devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-41679?
CVE-2025-41679 is a medium-severity memory corruption vulnerability in Helmholz REX 100, published on 21 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-787
Which versions are affected by CVE-2025-41679?
It affects 1 product.
Products include Mbconnectline Mbnet.mini Firmware.
How do I fix CVE-2025-41679?
No fix has been published for CVE-2025-41679 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-41679 being exploited?
There is no known exploitation of CVE-2025-41679 in the wild and no public exploit code.
Other vulnerabilities in Helmholz REX 100
- CVE-2025-41673 Remote Command Injection in send_sms Action Due to Improper Input Neutralization
- CVE-2025-41674 Remote Command Injection in diagnostic Action Due to Improper Input Neutralization
- CVE-2025-41675 Remote Command Injection via GET in Cloud Server Communication Script Due to Improper Input Neutralization
- CVE-2025-41678 SQL Injection via POST Requests Allowing Configuration Database Manipulation
- CVE-2025-41676 Resource Exhaustion via POST Requests to send-sms Action
Sources
Also known as GHSA-9c9x-54g4-9pfx.