QNAP QTS/QuTS hero/QuTScloud path traversal

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in QNAP QTS, QuTS hero and QuTScloud. Affected by this issue is some unknown functionality. The manipulation results in path traversal. This vulnerability is cataloged as CVE-2023-51364. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in QNAP QTS, QuTS hero and QuTScloud (version unknown). Affected is an unknown function. 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 integrity, and availability. CVE summarizes:

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

The weakness was shared by Chumen77 as qsa-24-14. The advisory is shared for download at qnap.com. This vulnerability is traded as CVE-2023-51364 since 12/18/2023. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Network Attached Storage Software

Vendor

QNAP

Name

License

commercial

Website

Vendor: https://www.qnap.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 8.7
CNA Vector (QNAP Systems, Inc.): 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/18/2023 🔍
04/26/2024 +129 days 🔍
04/26/2024 +0 days 🔍
12/10/2025 +593 days 🔍

Sourcesinfo

Vendor: qnap.com

Advisory: qsa-24-14
Researcher: Chumen77
Status: Confirmed

CVE: CVE-2023-51364 (🔍)
GCVE (CVE): GCVE-0-2023-51364
GCVE (VulDB): GCVE-100-262164

Entryinfo

Created: 04/26/2024 18:55
Updated: 12/10/2025 23:20
Changes: 04/26/2024 18:55 (64), 12/10/2025 23:20 (13)
Complete: 🔍
Cache ID: 216::103