How severe is CVE-2020-5595?

CVE-2020-5595 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-5595 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5595?

CVE-2020-5595 affects Mitsubishielectric Coreos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-5595?

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

When was CVE-2020-5595 published?

CVE-2020-5595 was published on 2020-07-07 and last updated on 2026-06-17.

CVE-2020-5595

CVE-2020-5595 is a critical-severity vulnerability in Mitsubishielectric Coreos with a CVSS 3.x base score of 9.8. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Mitsubishielectric Coreos
Published: 2020-07-07
Last modified: 2026-06-17

Description

TCP/IP function included in the firmware of Mitsubishi Electric GOT2000 series (CoreOS with version -Y and earlier installed in GT27 Model, GT25 Model, and GT23 Model) contains a buffer overflow vulnerability, which may allow a remote attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet.

Frequently asked questions

What is CVE-2020-5595?: TCP/IP function included in the firmware of Mitsubishi Electric GOT2000 series (CoreOS with version -Y and earlier installed in GT27 Model, GT25 Model, and GT23 Model) contains a buffer overflow vulnerability, which may allow a remote attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet.
How severe is CVE-2020-5595?: CVE-2020-5595 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-5595 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5595?: CVE-2020-5595 affects Mitsubishielectric Coreos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-5595?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-5595 published?: CVE-2020-5595 was published on 2020-07-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:mitsubishielectric:coreos:*:*:*:*:*:*:*:*

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