Vulnerability in Microhardcorp Bullet-3g
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Microhardcorp Bullet-3g
- Microhardcorp Bullet-3g Firmware — versions 1.2.0
- Microhardcorp Bullet-Lte
- Microhardcorp Bullet-Lte Firmware — versions 1.2.0
- Microhardcorp Bulletplus
- Microhardcorp Bulletplus Firmware — versions 1.3.0
- Microhardcorp Dragon-Lte
- Microhardcorp Dragon-Lte Firmware — versions 1.1.0
- Microhardcorp Ipn3gb
- Microhardcorp Ipn3gb Firmware — versions 2.2.0
Weakness classification (CWE)
References
- ExploitDB-45040 (Exploit, exploit)
- Microhard Systems Product Homepage (Product, product)
- Zero Science Lab Disclosure (ZSL-2018-5480) (Exploit, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2018-25147?
- CVE-2018-25147 is a high-severity vulnerability in Microhardcorp Bullet-3g, classified under CWE-1392. CVSS score: 7.5/10. Published 2025-12-24.
- How severe is CVE-2018-25147?
- High severity. CVSS v3 base score is 7.5 out of 10.