CVE-2020-5675

What it is

Out-of-bounds read vulnerability in GT21 model of GOT2000 series (GT2107-WTBD V01.39.000 and earlier, GT2107-WTSD V01.39.000 and earlier, GT2104-RTBD V01.39.000 and earlier, GT2104-PMBD V01.39.000 and earlier, and GT2103-PMBD V01.39.000 and earlier), GS21 model of GOT series (GS2110-WTBD V01.39.000 and earlier, GS2107-WTBD V01.39.000 and earlier, GS2110-WTBD-N V01.39.000 and earlier, and GS2107-WTBD-N V01.39.000 and earlier), and Tension Controller LE7-40GU-L series (LE7-40GU-L Screen package data for CC-Link IEF Basic V1.00, LE7-40GU-L Screen package data for MODBUS/TCP V1.00, and LE7-40GU-L Screen package data for SLMP V1.00) allows a remote attacker to cause a denial-of-service (DoS) condition by sending a specially crafted packet. As a result, deterioration of communication performance or a denial-of-service (DoS) condition of the TCP communication functions of the products may occur.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

2.8% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2020-12-04 08:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 03:22 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.8% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-12-04 08:15 UTC

Last modified

2026-06-17 03:22 UTC

Exploit probability

2.8% · EPSS, next 30 days

Weakness

CWE-125 · Out-of-bounds read

Record status

Modified

Affected

• Mitsubishielectric gt2107-wtbd Firmware ≤ 01.39.000
• Mitsubishielectric gt2107-wtsd Firmware ≤ 01.39.000
• Mitsubishielectric gt2104-rtbd Firmware ≤ 01.39.000
• Mitsubishielectric gt2104-pmbd Firmware ≤ 01.39.000
• Mitsubishielectric gt2103-pmbd Firmware ≤ 01.39.000
• Mitsubishielectric gs2110-wtbd Firmware ≤ 01.39.000
• Mitsubishielectric gs2107-wtbd Firmware ≤ 01.39.000
• Mitsubishielectric le7-40gu-l Firmware 1.00

Attack profile CVSS 3.1 · 7.5

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

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