Command injection via malicious configuration
Priority LOW 34CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0037 31st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MB connect line | mbNET/mbNET.rokey | 0.0.0 – 8.4.4 | — | No fix listed | CNA |
| MB connect line | mbNET.mini | 0.0.0 – 3.0.2 | — | No fix listed | CNA |
| MB connect line | mbNET/mbNET.rokey | 8.4.4 | — | No fix listed | CNA |
| MB connect line | mbNET.mini | 3.0.2 | — | No fix listed | CNA |
| Helmholz | REX200/250 | 0.0.0 – 8.4.4 | — | No fix listed | CNA |
| Helmholz | REX100 | 0.0.0 – 3.0.2 | — | No fix listed | CNA |
| Helmholz | REX200/250 | 8.4.4 | — | No fix listed | CNA |
| Helmholz | REX100 | 3.0.2 | — | No fix listed | CNA |
- mbNET/mbNET.rokey VendorMB connect line Affected 0.0.0 – 8.4.4 Fixed in — No fix listed CNA
- mbNET.mini VendorMB connect line Affected 0.0.0 – 3.0.2 Fixed in — No fix listed CNA
- mbNET/mbNET.rokey VendorMB connect line Affected 8.4.4 Fixed in — No fix listed CNA
- mbNET.mini VendorMB connect line Affected 3.0.2 Fixed in — No fix listed CNA
- REX200/250 VendorHelmholz Affected 0.0.0 – 8.4.4 Fixed in — No fix listed CNA
- REX100 VendorHelmholz Affected 0.0.0 – 3.0.2 Fixed in — No fix listed CNA
- REX200/250 VendorHelmholz Affected 8.4.4 Fixed in — No fix listed CNA
- REX100 VendorHelmholz Affected 3.0.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-40852
- 2026-10-03 Alias added: GHSA-4334-w3q6-m8g5
- 2026-10-25 EPSS moved to the below the 50th percentile
References
More MB connect line vulnerabilities
- TI-2024-30346 MB connect line/Helmholz: Remote code execution via confnet service CVSS 3.1CRITICAL 9.8
- TI-2026-25416 Unauthenticated RCE in com_mb24sysapi CVSS 3.1CRITICAL 9.8
- TI-2024-30347 MB connect line/Helmholz: Hardcoded user accounts with hard-coded passwords CVSS 3.1CRITICAL 9.8
- TI-2021-12922 OS Command Injection in mbDIALUP <= 3.9R0.0 CVSS 3.1CRITICAL 9.8
- TI-2024-15924 MB connect line: Cloud API access due to a lack of authentication for a critical function CVSS 3.1CRITICAL 9.1
- TI-2026-25997 MB connect line mbCONNECT24 vulnerable to an unauthenticated SQL injection in the setinfo Endpoint CVSS 3.1CRITICAL 9.1
Sources
- CVE-2026-40852 · CVE Program
- CVE-2026-40852 · NVD
- FIRST EPSS
- GHSA-4334-w3q6-m8g5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences