How severe is CVE-2018-25147?

CVE-2018-25147 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-25147 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-25147?

CVE-2018-25147 primarily affects Microhardcorp Ipn4g Firmware. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-25147?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2018-25147 have an EU (EUVD) identifier?

Yes. CVE-2018-25147 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205327.

When was CVE-2018-25147 published?

CVE-2018-25147 was published on 2025-12-24 and last updated on 2026-06-17.

CVE-2018-25147

CVE-2018-25147 is a high-severity vulnerability in Microhardcorp Ipn4g Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1392.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 9.3
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-205327
Weakness: CWE-1392
Affected product: Microhardcorp Ipn4g Firmware
Published: 2025-12-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2018-25147?: 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.
How severe is CVE-2018-25147?: CVE-2018-25147 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-25147 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-25147?: CVE-2018-25147 primarily affects Microhardcorp Ipn4g Firmware. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-25147?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2018-25147 have an EU (EUVD) identifier?: Yes. CVE-2018-25147 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205327.
When was CVE-2018-25147 published?: CVE-2018-25147 was published on 2025-12-24 and last updated on 2026-06-17.

References

Affected products (15)

cpe:2.3:o:microhardcorp:ipn4g_firmware:1.1.0:build1098:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:ipn3gb_firmware:2.2.0:build2160:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:ipn4gb_firmware:1.1.6:build1184-14:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:ipn4gb_firmware:1.1.0:rev2_build1090-2:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:ipn4gb_firmware:1.1.0:rev2_build1086:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:bullet-3g_firmware:1.2.0:reva_build1032:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:vip4gb_firmware:1.1.6:build_1204:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:vip4gb_firmware:1.1.6:rev3_build1184-14:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:vip4gb_wifi-n_firmware:1.1.6:rev2_build1196:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:bullet-3g_firmware:1.2.0:build1076:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:bullet-lte_firmware:1.2.0:build1078:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:ipn3gii_firmware:1.2.0:build1076:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:ipn4gii_firmware:1.2.0:build1078:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:bulletplus_firmware:1.3.0:build1036:*:*:*:*:*:*
cpe:2.3:o:microhardcorp:dragon-lte_firmware:1.1.0:build1036:*:*:*:*:*:*

More vulnerabilities in Microhardcorp Ipn4g Firmware

CVE-2018-25148 — High (CVSS 8.8): Microhard Systems IPn4G 1.1.0 contains multiple authenticated remote code execution vulnerabilities in the admin…
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CVE-2018-25144 — High (CVSS 8.4): Microhard Systems IPn4G 1.1.0 contains an authentication bypass vulnerability in the hidden system-editor.sh script…
CVE-2018-25146 — High (CVSS 8.1): Microhard Systems IPn4G 1.1.0 contains an undocumented vulnerability that allows authenticated attackers to list and…
CVE-2018-25149 — Medium (CVSS 6.5): Microhard Systems IPn4G 1.1.0 contains a cross-site request forgery vulnerability that allows attackers to perform…
CVE-2018-25145 — Medium (CVSS 6.5): Microhard Systems IPn4G 1.1.0 contains a configuration file disclosure vulnerability that allows authenticated…

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