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CVE-2018-25147

Microhardcorp Ipn4gb Firmware vulnerability

7.5 HIGHPublic exploitEPSS 0.39%
  1. Published24 Dec 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Microhardcorp Bullet-3g Firmware1.2.0
Microhardcorp Bullet-lte Firmware1.2.0
Microhardcorp Bulletplus Firmware1.3.0
Microhardcorp Dragon-lte Firmware1.1.0
Microhardcorp Ipn3gb Firmware2.2.0
Microhardcorp Ipn3gii Firmware1.2.0
Microhardcorp Ipn4gb Firmware1.1.0 · 1.1.6
Microhardcorp Ipn4g Firmware1.1.0
Microhardcorp Ipn4gii Firmware1.2.0
Microhardcorp Vip4gb Firmware1.1.6
Microhardcorp Vip4gb Wifi-n Firmware1.1.6

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2018-25147 being actively exploited?

CVE-2018-25147 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.39%.

How severe is CVE-2018-25147?

CVE-2018-25147 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.39% probability of exploitation.

Which products are affected by CVE-2018-25147?

Affected products include Microhardcorp Bullet-3g Firmware, Microhardcorp Bullet-lte Firmware, Microhardcorp Bulletplus Firmware, Microhardcorp Dragon-lte Firmware, Microhardcorp Ipn3gb Firmware, and 6 more.

How do I fix CVE-2018-25147?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2018-25147 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.