QNAP QTS/QuTS hero prior 5.2.6.3195 Build 20250715 path traversal

Summaryinfo

A vulnerability marked as critical has been reported in QNAP QTS and QuTS hero. Impacted is an unknown function. Performing a manipulation results in path traversal. This vulnerability is known as CVE-2025-47211. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in QNAP QTS and QuTS hero. This affects an unknown code. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality. The summary by CVE is:

A path traversal vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later

The weakness was published by coral as qsa-25-36. The advisory is shared at qnap.com. This vulnerability is uniquely identified as CVE-2025-47211 since 05/02/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation requires an enhanced level of successful authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 5.2.6.3195 Build 20250715 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-32353) and CERT Bund (WID-SEC-2025-2199). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• QNAP NAS

Productinfo

Type

• Network Attached Storage Software

Vendor

• QNAP

Name

• QTS
• QuTS hero

Version

• 4.5.4.2790 Build 20240605
• 5.1.3.2578 Build 20231110
• 5.1.4.2596 Build 20231128
• 5.1.6.2722 Build 20240402
• 5.1.7.2770 Build 20240520
• 5.1.8.2823 Build 20240712
• 5.1.9.2954 Build 20241120
• 5.2.0.2851 Build 20240808
• 5.2.3.3006 Build 20250108
• 5.2.4.3079 Build 20250321

License

• commercial

Website

• Vendor: https://www.qnap.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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