Authenticated denial of service via NULL dereference
Published Oct 3, 2025 · Updated Oct 3, 2025
NULL pointer dereference in QNAP Qsync Central 5.0.0 before 5.0.0.2 allows remote authenticated users to launch a denial-of-service attack. QNAP has not disclosed the affected request handler or the operation that dereferences the NULL pointer. Reachability requires a valid user account and network access to Qsync Central; the reported impact is limited to availability, with no published data exposure or modification.
Summary
What happened
NULL pointer dereference in QNAP Qsync Central 5.0.0 before 5.0.0.2 allows remote authenticated users to launch a denial-of-service attack. QNAP has not disclosed the affected request handler or the operation that dereferences the NULL pointer. Reachability requires a valid user account and network access to Qsync Central; the reported impact is limited to availability, with no published data exposure or modification.
The record
- CVE
- CVE-2025-47210
- Published
- Oct 3, 2025
- Updated
- Oct 3, 2025
- Vendor
- Linn Products Limited
- Product
- Qsync Central
- Classifications
- CWE-476, T1499
- 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=5.0.0 <5.0.0.2 ( 2025/07/31 )
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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