What’s Vulnerable › Vulnerabilities
CVE-2023-27396
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-06-19 · updated 2026-06-17
- Weakness: CWE-306
Description
FINS (Factory Interface Network Service) is a message communication protocol, which is designed to be used in closed FA (Factory Automation) networks, and is used in FA networks composed of OMRON products. Multiple OMRON products that implement FINS protocol contain following security issues -- (1)Plaintext communication, and (2)No authentication required. When FINS messages are intercepted, the contents may be retrieved. When arbitrary FINS messages are injected, any commands may be executed on, or the system information may be retrieved from, the affected device. Affected products and versions are as follows: SYSMAC CS-series CPU Units, all versions, SYSMAC CJ-series CPU Units, all versions, SYSMAC CP-series CPU Units, all versions, SYSMAC NJ-series CPU Units, all versions, SYSMAC NX1P-series CPU Units, all versions, SYSMAC NX102-series CPU Units, all versions, and SYSMAC NX7 Database Connection CPU Units (Ver.1.16 or later)
Affected products
- Omron Cj2H-Cpu64-Eip Firmware: all versions
- Omron Cj2H-Cpu64 Firmware: all versions
- Omron Cj2H-Cpu65-Eip Firmware: all versions
- Omron Cj2H-Cpu65 Firmware: all versions
- Omron Cj2H-Cpu66-Eip Firmware: all versions
- Omron Cj2H-Cpu66 Firmware: all versions
- Omron Cj2H-Cpu67-Eip Firmware: all versions
- Omron Cj2H-Cpu67 Firmware: all versions
- Omron Cj2H-Cpu68-Eip Firmware: all versions
- Omron Cj2H-Cpu68 Firmware: all versions
- Omron Cj2M-Cpu11 Firmware: all versions
- Omron Cj2M-Cpu12 Firmware: all versions
- Omron Cj2M-Cpu13 Firmware: all versions
- Omron Cj2M-Cpu14 Firmware: all versions
- Omron Cj2M-Cpu15 Firmware: all versions
- Omron Cj2M-Cpu31 Firmware: all versions
- Omron Cj2M-Cpu32 Firmware: all versions
- Omron Cj2M-Cpu33 Firmware: all versions
- Omron Cj2M-Cpu34 Firmware: all versions
- Omron Cj2M-Cpu35 Firmware: all versions
- Omron Cj2M-Md211 Firmware: all versions
- Omron Cj2M-Md212 Firmware: all versions
- Omron Cp1E-E10Dr-A Firmware: all versions
- Omron Cp1E-E10Dr-D Firmware: all versions
- Omron Cp1E-E10Dt-A Firmware: all versions
- Omron Cp1E-E10Dt-D Firmware: all versions
- Omron Cp1E-E10Dt1-A Firmware: all versions
- Omron Cp1E-E10Dt1-D Firmware: all versions
- Omron Cp1E-E14Dr-A Firmware: all versions
- Omron Cp1E-E14Sdr-A Firmware: all versions
References
- https://jvn.jp/en/ta/JVNTA91513661/
- https://jvn.jp/ta/JVNTA91513661/
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02
- https://www.fa.omron.co.jp/product/vulnerability/OMSR-2023-003_ja.pdf
- https://www.ia.omron.com/product/vulnerability/OMSR-2023-003_en.pdf
- https://www.us-cert.gov/ics/advisories/icsa-19-346-02
- https://www.us-cert.gov/ics/advisories/icsa-20-063-03
- https://jvn.jp/en/ta/JVNTA91513661/
- https://jvn.jp/ta/JVNTA91513661/
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02
- https://www.fa.omron.co.jp/product/vulnerability/OMSR-2023-003_ja.pdf
- https://www.ia.omron.com/product/vulnerability/OMSR-2023-003_en.pdf
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