Service interruption via unbounded resource allocation
Published Feb 11, 2026 · Updated Feb 11, 2026
Resource exhaustion in QNAP Qsync Central 5.2.x.x before 5.2.0.1 allows remote authenticated users to interrupt service over the network. The application allocates a shared resource without limits or throttling, but QNAP has not identified the affected request, function, or resource. Administrator access is required, and exploitation deprives other systems, applications, or processes of that resource without reported confidentiality or integrity impact.
Summary
What happened
Resource exhaustion in QNAP Qsync Central 5.2.x.x before 5.2.0.1 allows remote authenticated users to interrupt service over the network. The application allocates a shared resource without limits or throttling, but QNAP has not identified the affected request, function, or resource. Administrator access is required, and exploitation deprives other systems, applications, or processes of that resource without reported confidentiality or integrity impact.
The record
- CVE
- CVE-2025-58471
- Published
- Feb 11, 2026
- Updated
- Feb 11, 2026
- Vendor
- Linn Products Limited
- Product
- Qsync Central
- Classifications
- CWE-770, CAPEC-131, T1499
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Feb 11, 2026CVE publishedPublication date reported by the CVE source.
- Feb 11, 2026Record 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=5.2.x.x <5.2.0.1 ( 2025/12/21 )
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.
Weakness, pattern, technique
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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