Administrator-level denial of service via null dereference
Published Oct 3, 2025 · Updated Oct 3, 2025
NULL pointer dereference in QNAP QTS 5.2.x and QuTS hero h5.2.x allows remote authenticated users to interrupt NAS service. QNAP has not disclosed the affected component, input vector, or operation that reaches the null pointer, so the precise crash mechanism is unavailable. An administrator account is required, and successful exploitation causes a denial-of-service condition without reported data disclosure or modification.
Summary
What happened
NULL pointer dereference in QNAP QTS 5.2.x and QuTS hero h5.2.x allows remote authenticated users to interrupt NAS service. QNAP has not disclosed the affected component, input vector, or operation that reaches the null pointer, so the precise crash mechanism is unavailable. An administrator account is required, and successful exploitation causes a denial-of-service condition without reported data disclosure or modification.
The record
- CVE
- CVE-2025-52860
- Published
- Oct 3, 2025
- Updated
- Oct 3, 2025
- Vendor
- Linn Products Limited
- Product
- QuTS hero
- Classifications
- CWE-476, CAPEC-680, CAPEC-129, T1499.004
- Attack vector
- network
- Privileges
- admin
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=h5.2.x <h5.2.6.3195 build 20250715
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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