CVE-2024-4640

Name: CVE-2024-4640
Creator: NVD / NIST
Published: 2024-06-25T10:15:20.78+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2024-4640 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.2/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

EPSS Probability

0.39%

31.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
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

References

Timeline

Published: Jun 25, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-4640?

How severe is CVE-2024-4640?

CVE-2024-4640 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2024-4640?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-4640?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST