Public proof of conceptFix available

CVE-2024-50404

Q: Is CVE-2024-50404 actively exploited?

Active exploitation of CVE-2024-50404 has not been confirmed. Its EPSS score was 1.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2024-50404?

CVE-2024-50404 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2024-12-06
Fixed in4.4.0.16
WeaknessCWE-59

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC

2024-12-0617:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-50404?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-50404?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Qnap qsync central

Branch	Affected	Fixed in	Source
4.4	≥ 4.4.0, < 4.4.0.16	4.4.0.16	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Qnap qsync central to 4.4.0.16

Advisories and patches

www.qnap.comVendor Advisory

Detection

read 2026-10-23 19:24 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedC411e/CVE-2024-50404

Sources

CISA-ADPSSVC decisionnone2024-12-06
OpenCVESSVC decisionnone—
CNACVSS 4.06.8read 2026-10-23
NVDCVSS 3.18.8read 2026-10-23
CNAweakness (CWE)CWE-59read 2026-10-23
FIRST EPSSEPSS score1.4 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector: 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
Published: 2024-12-06
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2024-50404?

Is CVE-2024-50404 actively exploited?

Active exploitation of CVE-2024-50404 has not been confirmed. Its EPSS score was 1.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-50404?

CVE-2024-50404 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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