Cyber Resilience

CVE-2024-50404

Medium

Published: 06 December 2024

Published
06 December 2024
Modified
10 December 2025
KEV Added
Patch
CVSS Score v4 6.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.4429 97.6th percentile
Risk Priority 40 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-50404 is a medium-severity Link Following (CWE-59) vulnerability in Qnap Qsync Central. Its CVSS base score is 6.8 (Medium).

Operationally, ranked in the top 2.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2024-50404 is a link following vulnerability, tracked as CWE-59, that affects Qsync Central. The flaw resides in the software's handling of file paths and can be triggered over the network by an authenticated user, resulting in traversal to unintended file system locations with a CVSS 4.0 score of 6.8.

Attackers who have already obtained valid user credentials can exploit the issue remotely to access resources outside the intended scope. The vulnerability does not require user interaction beyond the initial access and primarily threatens availability, though the precise data exposure or modification outcomes depend on the traversed paths.

QNAP has released a fix in Qsync Central 4.4.0.16_20240819 and later versions, as documented in security advisory QSA-24-48. Organizations should apply the patched release promptly to eliminate the path traversal vector.

The associated EPSS score has remained flat at 0.4429 with no material increase since disclosure.

EU & UK References

Vulnerability details

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…

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following versions: Qsync Central 4.4.0.16_20240819 ( 2024/08/19 ) and later

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

qnap
qsync central
4.4.0 — 4.4.0.16

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References