QNAP Qsync Central 4.3.0.11/4.4.0.15 link following

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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in QNAP Qsync Central. This impacts an unknown function. The manipulation results in link following. This vulnerability was named CVE-2024-50404. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in QNAP Qsync Central. Affected is an unknown code block. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. This is going to have an impact on availability. CVE summarizes:

A link following vulnerability has been reported to affect Qsync Central. If exploited, the vulnerability could allow remote attackers who have gained user access to traverse the file system to unintended locations. We have already fixed the vulnerability in the following versions: Qsync Central 4.4.0.16_20240819 ( 2024/08/19 ) and later

The weakness was presented by C411e as qsa-24-48. The advisory is shared for download at qnap.com. This vulnerability is traded as CVE-2024-50404 since 10/24/2024. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 4.4.0.16_20240819 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

QNAP

Name

Qsync Central

Version

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
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: 🔍

Upgrade: Qsync Central 4.4.0.16_20240819

Timelineinfo

10/24/2024 🔍
12/06/2024 +43 days 🔍
12/06/2024 +0 days 🔍
12/10/2025 +369 days 🔍

Sourcesinfo

Vendor: qnap.com

Advisory: qsa-24-48
Researcher: C411e
Status: Confirmed

CVE: CVE-2024-50404 (🔍)
GCVE (CVE): GCVE-0-2024-50404
GCVE (VulDB): GCVE-100-287208

Entryinfo

Created: 12/06/2024 18:20
Updated: 12/10/2025 23:20
Changes: 12/06/2024 18:20 (34), 12/06/2024 18:21 (34), 12/10/2025 23:20 (12)
Complete: 🔍
Cache ID: 216::103