CVE-2025-47209 Qsync Central
A remote attacker with a user account can cause a denial-of-service in Qsync Central via a NULL pointer dereference.
- 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-2025-47209?
CVE-2025-47209 is a low-severity 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
A NULL pointer dereference vulnerability has been reported to affect Qsync Central. If a remote 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
Weakness: CWE-476
Which versions are affected by CVE-2025-47209?
It affects 1 product.
Products include Qnap Qsync Central.
How do I fix CVE-2025-47209?
No fix has been published for CVE-2025-47209 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-47209 being exploited?
There is no known exploitation of CVE-2025-47209 in the wild and no public exploit code.
Other vulnerabilities in Qnap Qsync Central
Sources
Also known as GHSA-g7hj-9w6f-45m2.