Remote administrator 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 with administrator access to interrupt service. QNAP has not identified the affected component, request, or code path; the published record states only that processing reaches a NULL pointer dereference. Exploitation requires a remote administrator account and causes a denial-of-service condition, with no reported confidentiality or integrity impact.
Summary
What happened
NULL pointer dereference in QNAP QTS 5.2.x and QuTS hero h5.2.x allows remote authenticated users with administrator access to interrupt service. QNAP has not identified the affected component, request, or code path; the published record states only that processing reaches a NULL pointer dereference. Exploitation requires a remote administrator account and causes a denial-of-service condition, with no reported confidentiality or integrity impact.
The record
- CVE
- CVE-2025-52433
- Published
- Oct 3, 2025
- Updated
- Oct 3, 2025
- Vendor
- Linn Products Limited
- Product
- QuTS hero
- Classifications
- CWE-476, T1499
- 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.
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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