Use-after-free vulnerability exists in Kostac PLC Programming Software (Former name: Koyo PLC Programming Software) Version 1.6.9.0 and earlier. With the abnormal value given as the maximum number of columns for the PLC program, the process accesses the freed memory. As a result, opening a specially crafted project file may lead to information disclosure and/or arbitrary code execution.

Related CVEs

CVE-2023-22424

Key Information

GHSA ID

GHSA-82v2-v4p5-fg34

Published

March 6, 2023 12:30 AM

Last Modified

March 7, 2025 6:30 PM

CVSS Score

7.5 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: July 12, 2025 6:29 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.