Cyber Resilience

CVE-2024-4640

High

Published: 25 June 2024

Published
25 June 2024
Modified
10 March 2025
KEV Added
Patch
CVSS Score v3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
EPSS Score 0.0073 73.0th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-4640 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Moxa Oncell G3470A-Lte-Us-T Firmware. Its CVSS base score is 7.1 (High).

Operationally, ranked in the top 27.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

OnCell G3470A-LTE Series firmware versions v1.7.7 and prior have been identified as vulnerable due to missing bounds checking on buffer operations. An attacker could write past the boundaries of allocated buffer regions in memory, causing a program crash.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

moxa
oncell g3470a-lte-us-t firmware
≤ 1.7.7
moxa
oncell g3470a-lte-eu firmware
≤ 1.7.7
moxa
oncell g3470a-lte-eu-t firmware
≤ 1.7.7
moxa
oncell g3470a-lte-us firmware
≤ 1.7.7

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References