Authenticated memory corruption via out-of-bounds write
Published Oct 3, 2025 · Updated Oct 3, 2025
Out-of-bounds write in QNAP Qsync Central 4.x allows remote authenticated users to corrupt memory over the network. QNAP identifies the defect class but does not disclose the affected component, request field, or bounds-checking failure that permits the write. A Qsync user account and network access to the NAS are required; the CNA assessment bounds the reported consequence to service interruption.
Summary
What happened
Out-of-bounds write in QNAP Qsync Central 4.x allows remote authenticated users to corrupt memory over the network. QNAP identifies the defect class but does not disclose the affected component, request field, or bounds-checking failure that permits the write. A Qsync user account and network access to the NAS are required; the CNA assessment bounds the reported consequence to service interruption.
The record
- CVE
- CVE-2025-44014
- Published
- Oct 3, 2025
- Updated
- Oct 3, 2025
- Vendor
- Linn Products Limited
- Product
- Qsync Central
- Classifications
- CWE-787, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 3, 2025CVE publishedPublication date reported by the CVE source.
- Oct 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.x <5.0.0.1 ( 2025/07/09 )
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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