CVE-2023-0027
5.3 · MEDIUMOverview
CVE-2023-0027 is a medium-severity vulnerability affecting rockwellautomation modbus_tcp_server_add_on_instructions. It was published on March 17, 2023 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that could cause the controller to respond with a copy of the most recent response to the last valid request. If exploited, an unauthorized user could read the connected device’s Modbus TCP Server AOI information.
Remediation
Check the references section for vendor advisories and patches from rockwellautomation. Update modbus_tcp_server_add_on_instructions 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 |
|---|---|---|---|
| rockwellautomation | modbus_tcp_server_add_on_instructions | >= 2.00.00, < 2.04.00 | Affected |
Frequently Asked Questions
What is CVE-2023-0027?
CVE-2023-0027 is a medium-severity vulnerability affecting rockwellautomation modbus_tcp_server_add_on_instructions. It was published on March 17, 2023 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2023-0027?
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-0027?
Check the references section for vendor advisories and patches from rockwellautomation. Update modbus_tcp_server_add_on_instructions 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-2023-0027?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-0027 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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