CVE-2025-54151 Qsync Central
A local attacker with a user account can exploit uncontrolled resource consumption in Qsync Central to launch a denial-of-service attack.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-54151?
CVE-2025-54151 is a medium-severity denial of service vulnerability in Qnap Qsync Central, published on 11 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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
Which versions are affected by CVE-2025-54151?
It affects 1 product.
Products include Qnap Qsync Central.
How do I fix CVE-2025-54151?
No fix has been published for CVE-2025-54151 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-54151 being exploited?
There is no known exploitation of CVE-2025-54151 in the wild and no public exploit code.
Other vulnerabilities in Qnap Qsync Central
Sources
Also known as GHSA-87q4-v2f4-jh82.