CVE-2025-54151

4.9 MEDIUM 0.3% exploit odds Fix listed Denial of service

What it is

An uncontrolled resource consumption vulnerability has been reported to affect Qsync Central. If a local attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and later

At a glance

Exploitability: Can be exploited over the network with a low-privilege account. High risk of service disruption.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-02-11 13:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 09:39 UTC Last updatedMost recent change to the record

Details

Published: 2026-02-11 13:15 UTC
Last modified: 2026-06-17 09:39 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-400 · Uncontrolled resource consumption
Record status: Analyzed

Affected

Qnap Qsync Central < 5.0.0.4

Attack profile CVSS 4.0 · 4.9

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: Low
User interaction: None
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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

Download Square Reddit

Fix and advisories

https://www.qnap.com/en/security-advisory/qsa-26-02

References

https://www.qnap.com/en/security-advisory/qsa-26-02

NVD record · CVE.org record