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CVE-2020-5599

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-07-07 · updated 2026-06-17
• Weakness: CWE-88

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 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.

Affected products

• Mitsubishielectric Coreos: through y

References

• https://jvn.jp/en/vu/JVNVU95413676/index.html
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-005_en.pdf
• https://jvn.jp/en/vu/JVNVU95413676/index.html
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-005_en.pdf

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