Resource Exhaustion via POST Requests to send-sms Action
Priority LOW 23CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.
Summary
A high privileged remote attacker can exhaust critical system resources by sending specifically crafted POST requests to the send-sms action in fast succession.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00628 50th percentileScored 2026-11-07
Fix Fixed mbNET.mini (MB connect line): 2.3.3REX 100 (Helmholz): 2.3.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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.mini | 0.0.0 to before 2.3.3 | 2.3.3 | Patch available | CNA |
| Helmholz | REX 100 | 0.0.0 to before 2.3.3 | 2.3.3 | Patch available | CNA |
- mbNET.mini VendorMB connect line Affected 0.0.0 to before 2.3.3 Fixed in 2.3.3 Patch available CNA
- REX 100 VendorHelmholz Affected 0.0.0 to before 2.3.3 Fixed in 2.3.3 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:mbconnectline:mbnet.mini_firmware:*:*:*:*:*:*:*:* | before 2.3.3 | Vulnerable | MB connect line |
| cpe:2.3:h:mbconnectline:mbnet.mini:-:*:*:*:*:*:*:* | not specified by NVD | Running on | MB connect line |
- cpe:2.3:o:mbconnectline:mbnet.mini_firmware:*:*:*:*:*:*:*:* Versions before 2.3.3 Vulnerable ·MB connect line
- cpe:2.3:h:mbconnectline:mbnet.mini:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·MB connect line
Remediation
- Fix · CNA mbNET.mini (MB connect line) Fixed in 2.3.3
- Fix · CNA REX 100 (Helmholz) Fixed in 2.3.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
MB connect line mbNET.mini 2.3.3
8 records Highest priority Priority MEDIUM 1 MEDIUM, 7 LOW
Other records, highest priority first
- TI-2025-27643 Unauthenticated Buffer Overflow in Conftool Service Leading to Denial of ServicePriority MEDIUM 40
- TI-2025-27642 SQL Injection via POST Requests Allowing Configuration Database ManipulationPriority LOW 35
- TI-2025-27639 Remote Command Injection via GET in Cloud Server Communication Script Due to Improper Input NeutralizationPriority LOW 35
- Release ·
Helmholz REX 100 2.3.3
8 records Highest priority Priority MEDIUM 1 MEDIUM, 7 LOW
Other records, highest priority first
- TI-2025-27643 Unauthenticated Buffer Overflow in Conftool Service Leading to Denial of ServicePriority MEDIUM 40
- TI-2025-27642 SQL Injection via POST Requests Allowing Configuration Database ManipulationPriority LOW 35
- TI-2025-27639 Remote Command Injection via GET in Cloud Server Communication Script Due to Improper Input NeutralizationPriority LOW 35
Timeline
- 2026-10-02 Threatist record created from CVE-2025-41676
- 2026-10-03 Alias added: GHSA-q967-6vc6-rqr5
- 2026-10-30 EPSS moved to the 50th–90th percentile
References
More MB connect line Mbnet.mini Firmware vulnerabilities
- TI-2024-30346 MB connect line/Helmholz: Remote code execution via confnet service 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-2025-27643 Unauthenticated Buffer Overflow in Conftool Service Leading to Denial of Service CVSS 3.1HIGH 7.5
- TI-2024-30348 MB connect line/Helmholz: tmp directory exposed via webservice CVSS 3.1HIGH 7.5
- TI-2024-30343 MB connect line/Helmholz: Remote code execution due to improper input validation CVSS 3.1HIGH 8.4
- TI-2024-30345 MB connect line/Helmholz: Weak encryption of configuration file CVSS 3.1HIGH 8.4
Sources
- CVE-2025-41676 · CVE Program
- CVE-2025-41676 · NVD
- FIRST EPSS
- GHSA-q967-6vc6-rqr5 · 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