CVE-2025-62848: CWE-476 in QNAP Systems Inc. QTS
A NULL pointer dereference vulnerability (CWE-476) affects QNAP Systems Inc. QTS operating system versions 5.2.x. This vulnerability allows remote attackers to cause a denial-of-service (DoS) condition. The issue has been fixed in QTS 5.2.7.3297 build 20251024 and later, as well as in QuTS hero h5.2.
AI Analysis
Technical Summary
CVE-2025-62848 is a high-severity vulnerability in QNAP QTS 5.2.x involving a NULL pointer dereference (CWE-476). This flaw can be exploited remotely without authentication to trigger a denial-of-service attack, causing the affected system to crash or become unresponsive. The vulnerability has been officially patched in QTS 5.2.7.3297 build 20251024 and subsequent releases, including QuTS hero variants.
Potential Impact
Successful exploitation results in a denial-of-service condition, disrupting availability of the affected QNAP NAS devices running vulnerable QTS versions. There is no indication of data breach or privilege escalation from the provided data.
Mitigation Recommendations
Upgrade affected QNAP QTS systems to version 5.2.7.3297 build 20251024 or later, or the corresponding patched QuTS hero versions. This official fix resolves the NULL pointer dereference vulnerability and mitigates the risk of denial-of-service attacks. No additional mitigation steps are specified.
CVE-2025-62848: CWE-476 in QNAP Systems Inc. QTS
Description
A NULL pointer dereference vulnerability (CWE-476) affects QNAP Systems Inc. QTS operating system versions 5.2.x. This vulnerability allows remote attackers to cause a denial-of-service (DoS) condition. The issue has been fixed in QTS 5.2.7.3297 build 20251024 and later, as well as in QuTS hero h5.2.
CVSS v4.0
Score 8.1high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-62848 is a high-severity vulnerability in QNAP QTS 5.2.x involving a NULL pointer dereference (CWE-476). This flaw can be exploited remotely without authentication to trigger a denial-of-service attack, causing the affected system to crash or become unresponsive. The vulnerability has been officially patched in QTS 5.2.7.3297 build 20251024 and subsequent releases, including QuTS hero variants.
Potential Impact
Successful exploitation results in a denial-of-service condition, disrupting availability of the affected QNAP NAS devices running vulnerable QTS versions. There is no indication of data breach or privilege escalation from the provided data.
Mitigation Recommendations
Upgrade affected QNAP QTS systems to version 5.2.7.3297 build 20251024 or later, or the corresponding patched QuTS hero versions. This official fix resolves the NULL pointer dereference vulnerability and mitigates the risk of denial-of-service attacks. No additional mitigation steps are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- qnap
- Date Reserved
- 2025-10-24T02:43:45.373Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6940c7c9d9bcdf3f3d1a981d
Added to database: 12/16/2025, 02:45:29 UTC
Last enriched: 05/26/2026, 20:20:11 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 419
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