CVE-2025-58466
Use of Uninitialized Variable in QNAP OS Allows DoS, Control Flow Hijack
Publication date: 2026-02-11
Last updated on: 2026-02-12
Assigner: QNAP Systems, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| qnap | qts | 5.2.0.2737 |
| qnap | qts | 5.2.0.2744 |
| qnap | qts | 5.2.0.2782 |
| qnap | qts | 5.2.0.2802 |
| qnap | qts | 5.2.0.2823 |
| qnap | qts | 5.2.0.2851 |
| qnap | qts | 5.2.0.2860 |
| qnap | qts | 5.2.1.2930 |
| qnap | qts | 5.2.2.2950 |
| qnap | qts | 5.2.3.3006 |
| qnap | qts | 5.2.4.3070 |
| qnap | qts | 5.2.4.3079 |
| qnap | qts | 5.2.4.3092 |
| qnap | qts | 5.2.5.3145 |
| qnap | qts | 5.2.6.3195 |
| qnap | qts | 5.2.6.3229 |
| qnap | qts | 5.2.7.3256 |
| qnap | qts | 5.2.7.3297 |
| qnap | qts | 5.2.8.3332 |
| qnap | quts_hero | h5.2.0.2737 |
| qnap | quts_hero | h5.2.0.2782 |
| qnap | quts_hero | h5.2.0.2789 |
| qnap | quts_hero | h5.2.0.2802 |
| qnap | quts_hero | h5.2.0.2823 |
| qnap | quts_hero | h5.2.0.2851 |
| qnap | quts_hero | h5.2.0.2860 |
| qnap | quts_hero | h5.2.1.2929 |
| qnap | quts_hero | h5.2.1.2940 |
| qnap | quts_hero | h5.2.2.2952 |
| qnap | quts_hero | h5.2.3.3006 |
| qnap | quts_hero | h5.2.4.3070 |
| qnap | quts_hero | h5.2.4.3079 |
| qnap | quts_hero | h5.2.5.3138 |
| qnap | quts_hero | h5.2.6.3195 |
| qnap | quts_hero | h5.2.7.3256 |
| qnap | quts_hero | h5.2.7.3297 |
| qnap | quts_hero | h5.2.8.3321 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-457 | The code uses a variable that has not been initialized, leading to unpredictable or unintended results. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a use of uninitialized variable issue affecting several QNAP operating system versions. It allows a remote attacker who already has an administrator account to exploit the vulnerability, potentially causing denial of service conditions or modifying the control flow of the system in unexpected ways.
How can this vulnerability impact me? :
If exploited by a remote attacker with administrator access, this vulnerability can lead to denial of service conditions or unexpected changes in the system's control flow, which may disrupt normal operations or cause instability.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should update your QNAP operating system to the fixed versions or later.
- For QTS, update to version 5.2.8.3332 build 20251128 or later.
- For QuTS hero, update to version h5.2.8.3321 build 20251117 or later.
Since the vulnerability requires an attacker to have an administrator account, ensure that administrator credentials are secure and monitor for any unauthorized access.