CVE-2023-38744
7.5 · HIGHOverview
CVE-2023-38744 is a high-severity vulnerability affecting omron cj2m-cpu35_firmware. It was published on August 3, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Denial-of-service (DoS) vulnerability due to improper validation of specified type of input issue exists in the built-in EtherNet/IP port of the CJ Series CJ2 CPU unit and the communication function of the CS/CJ Series EtherNet/IP unit. If an affected product receives a packet which is specially crafted by a remote unauthenticated attacker, the unit of the affected product may fall into a denial-of-service (DoS) condition. Affected products/versions are as follows: CJ2M CPU Unit CJ2M-CPU3[] Unit version of the built-in EtherNet/IP section Ver. 2.18 and earlier, CJ2H CPU Unit CJ2H-CPU6[]-EIP Unit version of the built-in EtherNet/IP section Ver. 3.04 and earlier, CS/CJ Series EtherNet/IP Unit CS1W-EIP21 V3.04 and earlier, and CS/CJ Series EtherNet/IP Unit CJ1W-EIP21 V3.04 and earlier.
Remediation
Check the references section for vendor advisories and patches from omron. Update cj2m-cpu35_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| omron | cj2m-cpu35_firmware | 0 | Affected |
| omron | cj2m-cpu34_firmware | 0 | Affected |
| omron | cj2m-cpu33_firmware | 0 | Affected |
| omron | cj2m-cpu32_firmware | 0 | Affected |
| omron | cj2m-cpu31_firmware | 0 | Affected |
| omron | cj2h-cpu68-eip_firmware | 0 | Affected |
| omron | cj2h-cpu67-eip_firmware | 0 | Affected |
| omron | cj2h-cpu66-eip_firmware | 0 | Affected |
| omron | cj2h-cpu65-eip_firmware | 0 | Affected |
| omron | cj2h-cpu64-eip_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2023-38744?
CVE-2023-38744 is a high-severity vulnerability affecting omron cj2m-cpu35_firmware. It was published on August 3, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2023-38744?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-38744?
Check the references section for vendor advisories and patches from omron. Update cj2m-cpu35_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-38744?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-38744 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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