Vulnerability in Helmholz Rex100
CVE-2026-40851
A local attacker can perform a confusion attack on the cfgparser via a specially crafted file on an USB stick leading to code execution. This can result in a total loss of confidentiality, integrity and availability.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (7.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.000
Affected products
- Helmholz Rex100 — versions 0.0.0, 3.0.2
- Helmholz Rex200/250 — versions 0.0.0, 8.4.4
- Mb Connect Line Mbnet/mbnet.rokey — versions 0.0.0, 8.4.4
- Mb Connect Line Mbnet.mini — versions 0.0.0, 3.0.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-40851?
- CVE-2026-40851 is a high-severity vulnerability in Helmholz Rex100, classified under CWE-1287. CVSS score: 8.4/10. Published 2026-05-27.
- How severe is CVE-2026-40851?
- High severity. CVSS v3 base score is 8.4 out of 10.