OS command injection in Microhard Bullet-LTE
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microhard Bullet-LTE prior to v1.2.0-r1112. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of the ping parameter provided to tools.sh. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-10595.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microhard | Bullet-LTE | before v1.2.0-r1112 | v1.2.0-r1112 | Patch available | CNA |
- Bullet-LTE VendorMicrohard Affected before v1.2.0-r1112 Fixed in v1.2.0-r1112 Patch available CNA
Remediation
- Fix · CNA Bullet-LTE (Microhard) Fixed in v1.2.0-r1112
Timeline
- 2026-10-02 Threatist record created from CVE-2020-17406
- 2026-10-03 Alias added: GHSA-9hwm-q6fg-r54g
References
More Microhard Bullet-lte Firmware vulnerabilities
- TI-2018-15373 Microhard Systems IPn4G 1.1.0 Default Credentials Authentication Bypass CVSS 4.0CRITICAL 9.3
- TI-2018-15369 Microhard Systems IPn4G 1.1.0 Backdoor Jailbreak via Microhard Sh Service CVSS 4.0HIGH 8.7
- TI-2018-15374 Microhard Systems IPn4G 1.1.0 Remote Code Execution via Admin Interface CVSS 4.0HIGH 8.7
- TI-2018-15370 Microhard Systems IPn4G 1.1.0 Arbitrary File Access via Undocumented System Editor CVSS 4.0HIGH 8.7
- TI-2018-15372 Microhard Systems IPn4G 1.1.0 Service Control Denial of Service CVSS 4.0HIGH 7.1
- TI-2018-15371 Microhard Systems IPn4G 1.1.0 Configuration Disclosure via Authenticated Download CVSS 4.0HIGH 7.1
Sources
- CVE-2020-17406 · CVE Program
- CVE-2020-17406 · NVD
- FIRST EPSS
- GHSA-9hwm-q6fg-r54g · 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