What is the CVSS score of CVE-2022-45794?

CVE-2022-45794 has a CVSS 3.1 base score of 8.6 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N. EPSS exploitation probability: 0.2%.

Which versions of Sysmac Cj2H Cpu64 Eip Firmware are affected by CVE-2022-45794?

CVE-2022-45794 presents significant security risk, a missing authentication vulnerability rated CVSS 8.6.

How to fix or mitigate CVE-2022-45794?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. Audit authentication configurations and rotate any potentially compromised credentials.

Sysmac Cj2H Cpu64 Eip Firmware CVE-2022-45794

HIGH

Missing Authentication for Critical Function (CWE-306)

2024-01-10 ot-cert@dragos.com

8.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.6 HIGH

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:34 vuln.today

CVE Published

Jan 10, 2024 - 23:15 nvd

HIGH 8.6

DescriptionCVE.org

An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.

AnalysisAI

An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card. Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card. Affected products include: Omron Sysmac Cj2H-Cpu64-Eip Firmware, Omron Sysmac Cj2H-Cpu64 Firmware, Omron Sysmac Cj2H-Cpu65-Eip Firmware, Omron Sysmac Cj2H-Cpu65 Firmware, Omron Sysmac Cj2H-Cpu66-Eip Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.