What’s Vulnerable › Vulnerabilities

CVE-2020-27257: Omron CX-One

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-09 · updated 2026-06-17
• Weakness: CWE-843

Description

This vulnerability allows local attackers to execute arbitrary code due to the lack of proper validation of user-supplied data, which can result in a type-confusion condition in the Omron CX-One Version 4.60 and prior devices.

Affected products

• Omron CX-One: through 4.60
• Omron CX-Position: through 2.52
• Omron CX-Protocol: through 2.02
• Omron CX-Server: through 5.0.28

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-007-02
• https://www.zerodayinitiative.com/advisories/ZDI-21-184/
• https://us-cert.cisa.gov/ics/advisories/icsa-21-007-02
• https://www.zerodayinitiative.com/advisories/ZDI-21-184/

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