What is the severity of CVE-2024-8403?

CVE-2024-8403 is classified as having a critical severity rating due to its potential to cause a Denial of Service condition.

How do I fix CVE-2024-8403?

To mitigate CVE-2024-8403, it is recommended to update affected devices to the latest versions provided by Mitsubishi Electric.

What products are affected by CVE-2024-8403?

CVE-2024-8403 affects Mitsubishi Electric MELSEC iQ-F Series FX5-ENET versions 1.100 and later and FX5-ENET/IP versions 1.100 to 1.104.

Can CVE-2024-8403 be exploited remotely?

Yes, CVE-2024-8403 can be exploited by a remote attacker due to improper validation of input.

What impact does CVE-2024-8403 have on network communication?

CVE-2024-8403 can lead to a Denial of Service condition, disrupting Ethernet communication of affected devices.

Vulnerability/
CVE-2024-8403

high

7.5

CWE

1287

19/11/2024

6/1/2025

CVE-2024-8403: Denial-of-Service Vulnerability in Ethernet port on MELSEC iQ-F Ethernet Module and EtherNet/IP Module

First published: Tue Nov 19 2024(Updated: )

Improper Validation of Specified Type of Input vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series FX5-ENET versions 1.100 and later and FX5-ENET/IP versions 1.100 to 1.104 allows a remote attacker to cause a Denial of Service condition in Ethernet communication of the products by sending specially crafted SLMP packets.

Credit: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp

Affected Software	Affected Version	How to fix
Mitsubishi Electric MELSEC iQ-F Series Ethernet module FX5-ENET	>=1.100
Mitsubishi Electric FX5-ENET/IP	>=1.100<1.105

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2024-8403?
CVE-2024-8403 is classified as having a critical severity rating due to its potential to cause a Denial of Service condition.
How do I fix CVE-2024-8403?
To mitigate CVE-2024-8403, it is recommended to update affected devices to the latest versions provided by Mitsubishi Electric.
What products are affected by CVE-2024-8403?
CVE-2024-8403 affects Mitsubishi Electric MELSEC iQ-F Series FX5-ENET versions 1.100 and later and FX5-ENET/IP versions 1.100 to 1.104.
Can CVE-2024-8403 be exploited remotely?
Yes, CVE-2024-8403 can be exploited by a remote attacker due to improper validation of input.
What impact does CVE-2024-8403 have on network communication?
CVE-2024-8403 can lead to a Denial of Service condition, disrupting Ethernet communication of affected devices.

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