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Vulnerabilities

CVE-2025-52863

High
QNAP QTS/QuTS Hero Buffer Overflow Vulnerability Enables Memory Manipulation
CWE-120 — Weakness Type
Published: Jan 2, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
8.1
🔗 NVD Official
📄 Description (English)

A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes.

We have already fixed the vulnerability in the following versions:
QTS 5.2.7.3256 build 20250913 and later
QuTS hero h5.2.7.3256 build 20250913 and later
QuTS hero h5.3.0.3192 build 20250716 and later

🤖 AI Executive Summary

A buffer overflow vulnerability in QNAP operating systems allows authenticated remote attackers to modify memory or crash processes. The vulnerability affects multiple QTS and QuTS hero versions and has been patched in recent builds.

📄 Description (Arabic)

ثغرة تجاوز المخزن المؤقت في أنظمة تشغيل QNAP تتطلب حساب مستخدم صحيح للاستغلال، مما يسمح للمهاجمين بتعديل الذاكرة أو إيقاف العمليات الحرجة. تؤثر الثغرة على إصدارات متعددة من QTS و QuTS hero وقد تم إصلاحها في الإصدارات الأخيرة.

🤖 ملخص تنفيذي (AI)

ثغرة تجاوز المخزن المؤقت في أنظمة تشغيل QNAP تسمح للمهاجمين البعيدين المصرحين بتعديل الذاكرة أو إيقاف العمليات. تؤثر الثغرة على إصدارات QTS و QuTS hero المتعددة وتم إصلاحها في الإصدارات الحديثة.

🤖 AI Intelligence Analysis Analyzed: May 1, 2026 17:16
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
banking government healthcare energy
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.0
/ 10.0
🔧 Remediation Steps (English)
Update QNAP systems immediately to QTS 5.2.7.3256 build 20250913 or later, QuTS hero h5.2.7.3256 build 20250913 or later, or QuTS hero h5.3.0.3192 build 20250716 or later. Restrict user account access to trusted personnel only and implement network segmentation to limit remote access to NAS devices.
🔧 خطوات المعالجة (العربية)
قم بتحديث أنظمة QNAP فوراً إلى QTS 5.2.7.3256 build 20250913 أو أحدث، أو QuTS hero h5.2.7.3256 build 20250913 أو أحدث، أو QuTS hero h5.3.0.3192 build 20250716 أو أحدث. قيد الوصول إلى حسابات المستخدمين للموظفين الموثوقين فقط وطبق تقسيم الشبكة لتحديد الوصول البعيد إلى أجهزة NAS.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.12.6.1 A.14.2.1
🔵 SAMA CSF
ID.RA-1 PR.IP-12
🟡 ISO 27001:2022
A.12.6.1 A.14.2.1 A.14.2.5
📦 Affected Products / CPE 34 entries
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:h5.3.0.3115
qnap:quts_hero:h5.3.0.3145
qnap:quts_hero:h5.3.0.3192
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
📊 CVSS Score
8.1
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.1
CWECWE-120
EPSS0.12%
Exploit No
Patch ✓ Yes
Published 2026-01-02
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
8.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-120
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