CVE-2025-48722
NULL Pointer Dereference in Qsync Central Enables Remote DoS
Publication date: 2026-02-11
Last updated on: 2026-02-11
Assigner: QNAP Systems, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| qnap | qsync_central | From 5.0.0.0 (inc) to 5.0.0.4 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-476 | The product dereferences a pointer that it expects to be valid but is NULL. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a NULL pointer dereference issue affecting Qsync Central. It occurs when a remote attacker who has gained access to a user account exploits the flaw to cause the software to crash or become unavailable.
Essentially, the attacker can trigger a denial-of-service (DoS) attack by exploiting this vulnerability.
How can this vulnerability impact me? :
If exploited, this vulnerability allows an attacker with a user account to launch a denial-of-service (DoS) attack against Qsync Central, causing the service to crash or become unavailable.
This can disrupt normal operations and potentially impact availability of services relying on Qsync Central.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should upgrade Qsync Central to version 5.0.0.4 or later, where the issue has been fixed.
Additionally, since exploitation requires a remote attacker to have a user account, reviewing and tightening user account access controls may help reduce risk.