Microhard Systems IPn4G 1.1.0 Backdoor Jailbreak via Microhard Sh Service
Priority HIGH 79CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
Microhard Systems IPn4G 1.1.0 contains a service vulnerability that allows authenticated users to enable a restricted SSH shell with a default 'msshc' user. Attackers can exploit a custom 'ping' command in the NcFTP environment to escape the restricted shell and execute commands with root privileges.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00601 49th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| Microhard | Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak | IPn4G 1.1.0 build 1098 | — | No fix listed | CNA |
- Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Backdoor Jailbreak VendorMicrohard Affected IPn4G 1.1.0 build 1098 Fixed in — No fix listed CNA
CPE configurations NVD · 26
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microhardcorp:ipn4g_firmware:1.1.0:build1098:*:*:*:*:*:* | 1.1.0 build1098 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:ipn4g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
| cpe:2.3:o:microhardcorp:ipn3gb_firmware:2.2.0:build2160:*:*:*:*:*:* | 2.2.0 build2160 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:ipn3gb:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
| cpe:2.3:o:microhardcorp:ipn4gb_firmware:1.1.6:build1184-14:*:*:*:*:*:* | 1.1.6 build1184-14 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:ipn4gb:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
| cpe:2.3:o:microhardcorp:ipn4gb_firmware:1.1.0:rev2_build1090-2:*:*:*:*:*:* | 1.1.0 rev2_build1090-2 | Vulnerable | Microhard |
| cpe:2.3:o:microhardcorp:ipn4gb_firmware:1.1.0:rev2_build1086:*:*:*:*:*:* | 1.1.0 rev2_build1086 | Vulnerable | Microhard |
| cpe:2.3:o:microhardcorp:bullet-3g_firmware:1.2.0:reva_build1032:*:*:*:*:*:* | 1.2.0 reva_build1032 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:bullet-3g:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
- cpe:2.3:o:microhardcorp:ipn4g_firmware:1.1.0:build1098:*:*:*:*:*:* Versions 1.1.0 build1098 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:ipn4g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
- cpe:2.3:o:microhardcorp:ipn3gb_firmware:2.2.0:build2160:*:*:*:*:*:* Versions 2.2.0 build2160 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:ipn3gb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
- cpe:2.3:o:microhardcorp:ipn4gb_firmware:1.1.6:build1184-14:*:*:*:*:*:* Versions 1.1.6 build1184-14 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:ipn4gb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
- cpe:2.3:o:microhardcorp:ipn4gb_firmware:1.1.0:rev2_build1090-2:*:*:*:*:*:* Versions 1.1.0 rev2_build1090-2 Vulnerable ·Microhard
- cpe:2.3:o:microhardcorp:ipn4gb_firmware:1.1.0:rev2_build1086:*:*:*:*:*:* Versions 1.1.0 rev2_build1086 Vulnerable ·Microhard
- cpe:2.3:o:microhardcorp:bullet-3g_firmware:1.2.0:reva_build1032:*:*:*:*:*:* Versions 1.2.0 reva_build1032 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:bullet-3g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
Show 16 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microhardcorp:vip4gb_firmware:1.1.6:build_1204:*:*:*:*:*:* | 1.1.6 build_1204 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:vip4gb:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
| cpe:2.3:o:microhardcorp:vip4gb_firmware:1.1.6:rev3_build1184-14:*:*:*:*:*:* | 1.1.6 rev3_build1184-14 | Vulnerable | Microhard |
| cpe:2.3:o:microhardcorp:vip4gb_wifi-n_firmware:1.1.6:rev2_build1196:*:*:*:*:*:* | 1.1.6 rev2_build1196 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:vip4gb_wifi-n:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
| cpe:2.3:o:microhardcorp:bullet-3g_firmware:1.2.0:build1076:*:*:*:*:*:* | 1.2.0 build1076 | Vulnerable | Microhard |
| cpe:2.3:o:microhardcorp:bullet-lte_firmware:1.2.0:build1078:*:*:*:*:*:* | 1.2.0 build1078 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:bullet-lte:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
| cpe:2.3:o:microhardcorp:ipn3gii_firmware:1.2.0:build1076:*:*:*:*:*:* | 1.2.0 build1076 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:ipn3gii:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
| cpe:2.3:o:microhardcorp:ipn4gii_firmware:1.2.0:build1078:*:*:*:*:*:* | 1.2.0 build1078 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:ipn4gii:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
| cpe:2.3:o:microhardcorp:bulletplus_firmware:1.3.0:build1036:*:*:*:*:*:* | 1.3.0 build1036 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:bulletplus:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
| cpe:2.3:o:microhardcorp:dragon-lte_firmware:1.1.0:build1036:*:*:*:*:*:* | 1.1.0 build1036 | Vulnerable | Microhard |
| cpe:2.3:h:microhardcorp:dragon-lte:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microhard |
- cpe:2.3:o:microhardcorp:vip4gb_firmware:1.1.6:build_1204:*:*:*:*:*:* Versions 1.1.6 build_1204 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:vip4gb:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
- cpe:2.3:o:microhardcorp:vip4gb_firmware:1.1.6:rev3_build1184-14:*:*:*:*:*:* Versions 1.1.6 rev3_build1184-14 Vulnerable ·Microhard
- cpe:2.3:o:microhardcorp:vip4gb_wifi-n_firmware:1.1.6:rev2_build1196:*:*:*:*:*:* Versions 1.1.6 rev2_build1196 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:vip4gb_wifi-n:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
- cpe:2.3:o:microhardcorp:bullet-3g_firmware:1.2.0:build1076:*:*:*:*:*:* Versions 1.2.0 build1076 Vulnerable ·Microhard
- cpe:2.3:o:microhardcorp:bullet-lte_firmware:1.2.0:build1078:*:*:*:*:*:* Versions 1.2.0 build1078 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:bullet-lte:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
- cpe:2.3:o:microhardcorp:ipn3gii_firmware:1.2.0:build1076:*:*:*:*:*:* Versions 1.2.0 build1076 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:ipn3gii:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
- cpe:2.3:o:microhardcorp:ipn4gii_firmware:1.2.0:build1078:*:*:*:*:*:* Versions 1.2.0 build1078 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:ipn4gii:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
- cpe:2.3:o:microhardcorp:bulletplus_firmware:1.3.0:build1036:*:*:*:*:*:* Versions 1.3.0 build1036 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:bulletplus:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
- cpe:2.3:o:microhardcorp:dragon-lte_firmware:1.1.0:build1036:*:*:*:*:*:* Versions 1.1.0 build1036 Vulnerable ·Microhard
- cpe:2.3:h:microhardcorp:dragon-lte:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microhard
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-25143
- 2026-10-03 Alias added: GHSA-x8gg-ghxq-c254
References
More Microhard Bullet-3g Firmware vulnerabilities
- TI-2018-15373 Microhard Systems IPn4G 1.1.0 Default Credentials Authentication Bypass CVSS 4.0CRITICAL 9.3
- 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
- TI-2018-15375 Microhard Systems IPn4G 1.1.0 Cross-Site Request Forgery via Web Interface CVSS 4.0MEDIUM 5.1
Sources
- CVE-2018-25143 · CVE Program
- CVE-2018-25143 · NVD
- FIRST EPSS
- GHSA-x8gg-ghxq-c254 · GitHub Advisory Database · CC BY 4.0
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