Service interruption via unthrottled resource allocation
Published Feb 11, 2026 · Updated Feb 11, 2026
Resource exhaustion in QNAP File Station 5 before 5.5.6.5018 allows remote authenticated users with administrator access to interrupt service. The application allocates an unspecified shared resource without limits or throttling, allowing repeated requests to exhaust its available capacity. QNAP has not disclosed the affected function or request; exploitation requires an administrator account and prevents other systems, applications, or processes from accessing that resource.
Summary
What happened
Resource exhaustion in QNAP File Station 5 before 5.5.6.5018 allows remote authenticated users with administrator access to interrupt service. The application allocates an unspecified shared resource without limits or throttling, allowing repeated requests to exhaust its available capacity. QNAP has not disclosed the affected function or request; exploitation requires an administrator account and prevents other systems, applications, or processes from accessing that resource.
The record
- CVE
- CVE-2025-54155
- Published
- Feb 11, 2026
- Updated
- Feb 11, 2026
- Vendor
- Linn Products Limited
- Product
- File Station 5
- Classifications
- CWE-770, 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=5.5.x <5.5.6.5018
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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