What is the CVSS score of CVE-2023-1424?

CVE-2023-1424 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 3.4%.

Is there a patch available for CVE-2023-1424?

Yes, a patch is available for CVE-2023-1424. Update the affected software to the latest version immediately.

Melsec Iq Fx5U 32Mr Ds Firmware CVE-2023-1424

HIGH

Classic Buffer Overflow (CWE-120)

2023-05-24 Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

May 24, 2023 - 05:15 nvd

HIGH 8.1

DescriptionNVD

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on a target product by sending specially crafted packets. A system reset of the product is required for recovery from a denial of service (DoS) condition and malicious code execution.

AnalysisAI

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. This Buffer Copy without Size Check vulnerability could allow attackers to overflow a buffer to corrupt adjacent memory.

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. Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on a target product by sending specially crafted packets. A system reset of the product is required for recovery from a denial of service (DoS) condition and malicious code execution. Affected products include: Mitsubishielectric Melsec Iq-Fx5U-32Mr\/Ds Firmware, Mitsubishielectric Melsec Iq-Fx5U-32Mr\/Dss Firmware, Mitsubishielectric Melsec Iq-Fx5U-32Mr\/Es Firmware, Mitsubishielectric Melsec Iq-Fx5U-32Mr\/Ess Firmware, Mitsubishielectric Melsec Iq-Fx5U-32Mt\/Ds Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.