Microhard Systems IPn4G 1.1.0 Default Credentials Authentication Bypass
Published Dec 24, 2025
9.3
CRITICALCVSS 4.0
EPSS 0.39%
Description
Microhard Systems IPn4G 1.1.0 contains hardcoded default credentials that cannot be changed through normal gateway operations. Attackers can exploit these default credentials to gain unauthorized root-level access to the device by logging in with predefined username and password combinations.
Affected products
- Vendor Microhard Systems Product Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Default Credentials Defaultn/a
- Version IPn4G 1.1.0 build 1098StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Microhard Systems | Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway Default Credentials | n/a |
|
Configuration 1
- 1.1.0
Running on/with
- n/a
Configuration 2
- 2.2.0
Running on/with
- n/a
Configuration 3
- 1.1.6
Running on/with
- n/a
Configuration 4
- 1.1.0
Running on/with
- n/a
Configuration 5
- 1.1.0
Running on/with
- n/a
Configuration 6
- 1.2.0
Running on/with
- n/a
Configuration 7
- 1.1.6
Running on/with
- n/a
Configuration 8
- 1.1.6
Running on/with
- n/a
Configuration 9
- 1.1.6
Running on/with
- n/a
Configuration 10
- 1.2.0
Running on/with
- n/a
Configuration 11
- 1.2.0
Running on/with
- n/a
Configuration 12
- 1.2.0
Running on/with
- n/a
Configuration 13
- 1.2.0
Running on/with
- n/a
Configuration 14
- 1.3.0
Running on/with
- n/a
Configuration 15
- 1.1.0
Running on/with
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Dec 24, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00388) | 30.48th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.33% (0.00334) | 24.94th | v5 (v2026.06.15) |
| Dec 25, 2025 | 0.03% (0.00030) | 8.11th | v4 (v2025.03.14) |
References (3)
- http://www.microhardcorp.com product
- https://www.exploit-db.com/exploits/45040 exploit
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5480.php exploitthird-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.microhardcorp.com | product | |
| https://www.exploit-db.com/exploits/45040 | exploit | |
| https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5480.php | exploitthird-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.