How severe is CVE-2020-5675?

CVE-2020-5675 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-5675 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5675?

CVE-2020-5675 primarily affects Mitsubishielectric Gt2107-wtbd Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-5675?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-5675 published?

CVE-2020-5675 was published on 2020-12-04 and last updated on 2026-06-17.

CVE-2020-5675

CVE-2020-5675 is a high-severity vulnerability in Mitsubishielectric Gt2107-wtbd Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Mitsubishielectric Gt2107-wtbd Firmware
Published: 2020-12-04
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-5675?: 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.
How severe is CVE-2020-5675?: CVE-2020-5675 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-5675 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5675?: CVE-2020-5675 primarily affects Mitsubishielectric Gt2107-wtbd Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-5675?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-5675 published?: CVE-2020-5675 was published on 2020-12-04 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:o:mitsubishielectric:gt2107-wtbd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:gt2107-wtsd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:gt2104-rtbd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:gt2104-pmbd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:gt2103-pmbd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:gs2110-wtbd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:gs2107-wtbd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:le7-40gu-l_firmware:1.00:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:gs2110-wtbd-n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:mitsubishielectric:gs2107-wtbd-n_firmware:*:*:*:*:*:*:*:*

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