CVE intelligence and bounded remediation

CVE-2018-11420 — Moxa Oncell G3150-Hspa Firmware security vulnerability

Critical CVSS 9.8

There is Memory corruption in the web interface of Moxa OnCell G3100-HSPA Series version 1.5 Build 17042015 and prio,r a different vulnerability than CVE-2018-11423.

Severity
Critical
CVSS
9.8 (3.0)
Published
2019-07-03
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-787

Affected products

  • moxa / oncell_g3150-hspa_firmware
  • moxa / oncell_g3150-hspa-t_firmware

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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