CVE-2025-52869
Buffer Overflow in Qsync Central Allows Memory Corruption, Crashes
Publication date: 2026-02-11
Last updated on: 2026-02-12
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-122 | A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). |
| CWE-120 | The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a buffer overflow issue affecting Qsync Central. It allows a remote attacker who has gained access to a user account to exploit the vulnerability to modify memory or cause processes to crash.
How can this vulnerability impact me? :
If exploited, this vulnerability can allow an attacker to alter memory contents or crash processes on the affected system. This could lead to system instability, denial of service, or potentially unauthorized actions depending on the memory modifications.
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, as the vulnerability has been fixed starting from this version.