What is the CVSS score of CVE-2024-4640?

CVE-2024-4640 has a CVSS 3.1 base score of 8.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H. EPSS exploitation probability: 0.4%.

Oncell G3470A Lte Us T Firmware CVE-2024-4640

HIGH

Classic Buffer Overflow (CWE-120)

2024-06-25 psirt@moxa.com

Buffer Overflow Oncell G3470A Lte Us T Firmware Oncell G3470A Lte Eu Firmware Oncell G3470A Lte Eu T Firmware Oncell G3470A Lte Us Firmware

8.2

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.2 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Lifecycle Timeline

CVE Published

Jun 25, 2024 - 10:15 nvd

HIGH 8.2

DescriptionNVD

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.

AnalysisAI

OnCell G3470A-LTE Series firmware versions v1.7.7 and prior have been identified as vulnerable due to missing bounds checking on buffer operations. Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. 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. Affected products include: Moxa Oncell G3470A-Lte-Us-T Firmware, Moxa Oncell G3470A-Lte-Eu Firmware, Moxa Oncell G3470A-Lte-Eu-T Firmware, Moxa Oncell G3470A-Lte-Us Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.