No exploitation reported

CVE-2020-5675

No exploitation reported by the sources we read.

Published2020-12-04
WeaknessCWE-125

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2020-12-0408:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-5675?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-5675?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Mitsubishielectric gs2107-wtbd firmwareversion to verify

Branch	Affected	Fixed in	Source
1.39	≤ 01.39.000	no fix published	NVD

Mitsubishielectric gs2107-wtbd-n firmwareversion to verify

Branch	Affected	Fixed in	Source
1.39	≤ 01.39.000	no fix published	NVD

Mitsubishielectric gs2110-wtbd firmwareversion to verify

Branch	Affected	Fixed in	Source
1.39	≤ 01.39.000	no fix published	NVD

7 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-20-343-02 CISA12 known affected
Mitsubishi Electric GOT and Tension Controller (Update B)
GT2107-WTBD: versions v01.39.000 and earlier · GS2110-WTBD-N: versions v01.39.000 and earlier · GT2103-PMBD: versions v01.39.000 and earlier · +9 more

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-20-343-02 · 12 productsMitsubishi Electric has fixed the basic system application for GOT2000 series GT21 model or GOT SIMPLE series GS21 model, which is shipped with GT Designer3 (2000) versions 1.255R or later.
Mitigation from the vendor CISA ICSA-20-343-02 · 12 productsTo apply version v01.40.000 or later to GOT2000 series GT21 model or GOT SIMPLE series GS21 model, use the following update procedure:
Mitigation from the vendor CISA ICSA-20-343-02 · 12 productsDownload the fixed version of MELSOFT GT Designer3(2000) and install into the PC. Please contact a Mitsubishi Electric representative about MELSOFT GT Designer3(2000).
Mitigation from the vendor CISA ICSA-20-343-02 · 12 productsStart the MELSOFT GT Designer3 (GOT2000) and open the project data used in affected products.
Mitigation from the vendor CISA ICSA-20-343-02 · 12 productsSelect Write to GOT from Communication menu to write the required package data to the GOT.
Mitigation from the vendor CISA ICSA-20-343-02 · 12 productsPlease refer to the GT Designer3 (GOT2000) Screen Design Manual.

Advisories and patches

www.mitsubishielectric.co.jpVendor Advisory
www.mitsubishielectric.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.05read 2026-10-23
NVDweakness (CWE)CWE-125read 2026-10-23
FIRST EPSSEPSS score2.8 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2020-12-04
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-5675?

Is CVE-2020-5675 actively exploited?

Active exploitation of CVE-2020-5675 has not been confirmed. Its EPSS score was 2.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-5675?

CVE-2020-5675 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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