Command injection via malicious configuration
Summary
| CVE | CVE-2026-40852 |
|---|---|
| State | PUBLISHED |
| Assigner | CERTVDE |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-27 09:16:31 UTC |
| Updated | 2026-05-27 14:53:22 UTC |
| Description | A highly authenticated attacker can alter the config generator injecting a payload into future created configurations. The device is not correctly checking this configuration value before passing it to an system execute leading to code execution. This can result in a total loss of confidentiality, integrity and availability. |
Risk And Classification
Primary CVSS: v3.1 7.2 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.000720000 probability, percentile 0.220740000 (date 2026-05-30)
Problem Types: CWE-78 | CWE-78 CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | MB Connect Line | MbNET/mbNET.rokey | affected 0.0.0 8.4.4 semver | Not specified |
| CNA | MB Connect Line | MbNET.mini | affected 0.0.0 3.0.2 semver | Not specified |
| CNA | MB Connect Line | MbNET/mbNET.rokey | affected 8.4.4 | Not specified |
| CNA | MB Connect Line | MbNET.mini | affected 3.0.2 | Not specified |
| CNA | Helmholz | REX200/250 | affected 0.0.0 8.4.4 semver | Not specified |
| CNA | Helmholz | REX100 | affected 0.0.0 3.0.2 semver | Not specified |
| CNA | Helmholz | REX200/250 | affected 8.4.4 | Not specified |
| CNA | Helmholz | REX100 | affected 3.0.2 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.certvde.com/en/advisories/VDE-2026-054 | [email protected] | www.certvde.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Moritz Abrell from SySS GmbH (en)
CNA: Christian Zäske from SySS GmbH (en)
There are currently no legacy QID mappings associated with this CVE.