CVE-2020-5599

highpriority · track · 40EPSS 0.035 · 89 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.49% (89th) EPSS

CVSS 10 · high

Is it mine?

8 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

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 an improper neutralization of argument delimiters in a command ('Argument Injection') 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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationGT23 modelcisa_csaf_ot
Insert the SD card removed from the personal computer to the target products and update to the latest version of CoreOS.
MitigationGT25 modelcisa_csaf_ot
Insert the SD card removed from the personal computer to the target products and update to the latest version of CoreOS.
MitigationGT27 modelcisa_csaf_ot
Insert the SD card removed from the personal computer to the target products and update to the latest version of CoreOS.

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.1–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.07.1highCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Hsecondary · CISA US

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-88USprimaryCWE-88US

affected products (8)

Products and version ranges known to be affected.

GT23 model: GOT2000 CoreOS Version -Y and earlierall versionscisa_csaf_otUS
GT25 model: GOT2000 CoreOS Version -Y and earlierall versionscisa_csaf_otUS
GT27 model: GOT2000 CoreOS Version -Y and earlierall versionscisa_csaf_otUS
Mitsubishi Electric GT23 modelall versionscisa_csaf_otUS
Mitsubishi Electric GT25 modelall versionscisa_csaf_otUS
Mitsubishi Electric GT27 modelall versionscisa_csaf_otUS
Mitsubishi Electric Corporation GOT2000 series GT27, GT25, and GT23≤ CoreOS with version -Y and earlier installed in GT27 Model, GT25 Model, and GT23 Modelenisa_euvdEU
mitsubishielectric coreos≤ ynvdUScpe:2.3:o:mitsubishielectric:coreos:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-20-189-02Mitsubishi Electric GOT2000 Series2020-07-07icsa · cisa_csaf_otUS
This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2020-07-07modified 2026-06-17

related (592)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-86060US	critical9.8OT critical	6.39% (94th)	KEV	2026-09-05
RouterOS contains an argument-handling flaw in the SSH login path involving usernames that begin with a prohibited character, allowing for the trusted RouterOS policy mask to be ch…
CVE-2026-24061US	—OT critical	99.0% (100th)	KEV	2026-01-21
telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.
CVE-2024-41710US	high7.2OT critical	41.6% (99th)	KEV	2024-08-12
A vulnerability in the Mitel 6800 Series, 6900 Series, and 6900w Series SIP Phones, including the 6970 Conference Unit, through R6.4.0.HF1 (R6.4.0.136) could allow an authenticated…
CVE-2024-4577US	critical9.8OT critical	100.0% (100th)	KEV	2024-06-09
In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows m…
CVE-2022-36804US	high8.8OT critical	99.1% (100th)	KEV	2022-08-25
Multiple API endpoints in Atlassian Bitbucket Server and Data Center 7.0.0 before version 7.6.17, from version 7.7.0 before version 7.17.10, from version 7.18.0 before version 7.21…

+587 more

references (10)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan