What is CVE-2024-4640?

CVE-2024-4640 is a high-severity vulnerability in Moxa Oncell G3150a-Lte Series, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.1/10. Published 2024-06-25.

How severe is CVE-2024-4640?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2024-4640 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Moxa Oncell G3150a-Lte Series

CVE-2024-4640

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.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (31.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

psirt@moxa.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2024-4640?: CVE-2024-4640 is a high-severity vulnerability in Moxa Oncell G3150a-Lte Series, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.1/10. Published 2024-06-25.
How severe is CVE-2024-4640?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2024-4640 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.