Vulnerability · Published Jul 21, 2025 · Assigned by CERTVDE
CVE-2025-41679Unauthenticated Buffer Overflow in Conftool Service Leading to Denial of Service
Medium 5.3
In plain English
A medium-severity out-of-bounds write in REX 100 from Helmholz. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 55% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.8%top 44.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MB connect line | mbNET.mini | 0.0.0 – before 2.3.3 |
| Helmholz | REX 100 | 0.0.0 – before 2.3.3 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L