CVE-2018-11422

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-07-03 · updated 2026-06-17
Weakness: CWE-319

Description

Moxa OnCell G3100-HSPA Series version 1.6 Build 17100315 and prior use a proprietary configuration protocol that does not provide confidentiality, integrity, and authenticity security controls. All information is sent in plain text, and can be intercepted and modified. Any commands (including device reboot, configuration download or upload, or firmware upgrade) are accepted and executed by the device without authentication.

Affected products

Moxa Oncell G3150-Hspa-T Firmware: through 1.6
Moxa Oncell G3150-Hspa Firmware: through 1.6

References

https://github.com/klsecservices/Advisories/blob/master/KL-MOXA-2018-104.md
https://github.com/klsecservices/Advisories/blob/master/KL-MOXA-2018-104.md

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