CVE-2023-7033 (CVSS 5.3)

Description

Insufficient Resource Pool vulnerability in Ethernet function of Mitsubishi Electric Corporation MELSEC iQ-R series CPU module, MELSEC iQ-L series CPU module, MELSEC iQ-R Ethernet Interface Module, MELSEC iQ-R CC-Link IE TSN Master/Local Module, CC-Link IE TSN Remote I/O Module, CC-Link IE TSN Analog-Digital Converter Module, CC-Link IE TSN Digital-Analog Converter Module, CC-Link IE TSN - CC-Link IE Field Network Bridge Module, CC-Link IE TSN - AnyWireASLINK Bridge Module, CC-Link IE TSN FPGA Module, CC-Link IE TSN Remote Station Communication LSI CP620 with GbE-PHY, MELSEC iQ-R Motion Module, MELSEC iQ-L Motion Module, MELSEC iQ-F FX5 Motion Module, MELSEC iQ-F Series CPU module, MELSEC iQ-F Series Ethernet module, MELSEC iQ-F Series Ethernet/IP module, MELSEC iQ-F Series OPC UA Module, MELSEC iQ-F Series CC-Link IE TSN master/local module, GOT2000 Series CC-Link IE TSN Communication Unit, FR-A800-E series inverters, FR-F800-E series inverters, FR-E800-E series inverters, INVERTER CC-Link IE TSN Plug-in option, INVERTER CC-Link IE TSN Safety Plug-in option, INVERTER CC-Link IE TSN communication function built-in type, MR-J5 series AC Servos MELSERVO, MR-JET series AC Servos MELSERVO, MR-MD333G series AC Servos MELSERVO, MR-JE series AC Servos MELSERVO, MELSERVO-J4 AC Servos MELSERVO and Embedded Type Servo System Controller allow a remote attacker to cause a temporary Denial of Service condition for a certain period of time in Ethernet communication of the products by performing TCP SYN Flood attack.

Is your site exposed to CVE-2023-7033?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

5.3

MEDIUM

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

Weakness Type (CWE)

CWE-410 CWE-410

References

Other References

https://jvn.jp/vu/JVNVU96145466/index.html https://www.cisa.gov/news-events/ics-advisories/icsa-24-058-01 https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-023_en.pdf https://jvn.jp/vu/JVNVU96145466/index.html https://www.cisa.gov/news-events/ics-advisories/icsa-24-058-01 https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-023_en.pdf

Frequently Asked Questions

What is CVE-2023-7033? +

Insufficient Resource Pool vulnerability in Ethernet function of Mitsubishi Electric Corporation MELSEC iQ-R series CPU module, MELSEC iQ-L series CPU module, MELSEC iQ-R Ethernet Interface Module, MELSEC iQ-R CC-Link IE TSN Master/Local Module, CC-Link IE TSN Remote I/O Module, CC-Link IE TSN Analog-Digital Converter Module, CC-Link IE TSN Digital-Analog Converter Module, CC-Link IE TSN - CC-Link IE Field Network Bridge Module, CC-Link IE TSN - AnyWireASLINK Bridge Module, CC-Link IE TSN FPGA Module, CC-Link IE TSN Remote Station Communication LSI CP620 with GbE-PHY, MELSEC iQ-R Motion Module, MELSEC iQ-L Motion Module, MELSEC iQ-F FX5 Motion Module, MELSEC iQ-F Series CPU module, MELSEC iQ-F Series Ethernet module, MELSEC iQ-F Series Ethernet/IP module, MELSEC iQ-F Series OPC UA Module, MELSEC iQ-F Series CC-Link IE TSN master/local module, GOT2000 Series CC-Link IE TSN Communication Unit, FR-A800-E series inverters, FR-F800-E series inverters, FR-E800-E series inverters, INVERTER CC-Link IE TSN Plug-in option, INVERTER CC-Link IE TSN Safety Plug-in option, INVERTER CC-Link IE TSN communication function built-in type, MR-J5 series AC Servos MELSERVO, MR-JET series AC Servos MELSERVO, MR-MD333G series AC Servos MELSERVO, MR-JE series AC Servos MELSERVO, MELSERVO-J4 AC Servos MELSERVO and Embedded Type Servo System Controller allow a remote attacker to cause a temporary Denial of Service condition for a certain period of time in Ethernet communication of the products by performing TCP SYN Flood attack. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-7033? +

CVE-2023-7033 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2023-7033? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-12986

When a WF200/WGM160P device is configured to operate as an Access Point, it may be vulnerable to a denial of …

CVE-2025-0453 7.5

In mlflow/mlflow version 2.17.2, the `/graphql` endpoint is vulnerable to a denial of service attack. An attacker can create large …

CVE-2025-27479 7.5

Insufficient resource pool in Windows Kerberos allows an unauthorized attacker to deny service over a network.

CVE-2025-41653 7.5

An unauthenticated remote attacker can exploit a denial-of-service vulnerability in the device's web server functionality by sending a specially crafted …

CVE-2024-7392 6.5

ChargePoint Home Flex Bluetooth Low Energy Denial-of-Service Vulnerability. This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected …

CVE-2025-20103 6.5

Insufficient resource pool in the core management mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable …

CVE-2023-7033