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CVE-2023-4088: Malicious Code Execution Vulnerability in FA Engineering Software Products

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-09-20 · updated 2026-06-17
• Weakness: CWE-276

Description

Incorrect Default Permissions vulnerability in Mitsubishi Electric Corporation multiple FA engineering software products allows a malicious local attacker to execute a malicious code, resulting in information disclosure, tampering with and deletion, or a denial-of-service (DoS) condition, if the product is installed in a folder other than the default installation folder.

Affected products

• Mitsubishi Electric Corporation GX Works3: all versions

References

• https://jvn.jp/vu/JVNVU96447193/index.html
• https://www.cisa.gov/news-events/ics-advisories/icsa-23-269-03
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-010_en.pdf
• https://jvn.jp/vu/JVNVU96447193/index.html
• https://www.cisa.gov/news-events/ics-advisories/icsa-23-269-03
• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-010_en.pdf

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