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Vulnerabilities

CVE-2026-34853

High
CWE-270 — Weakness Type
Published: Apr 13, 2026  ·  Modified: Apr 20, 2026  ·  Source: NVD
CVSS v3
7.7
🔗 NVD Official
📄 Description (English)

Permission bypass vulnerability in the LBS module.
Impact: Successful exploitation of this vulnerability may affect availability.

🤖 AI Executive Summary

CVE-2026-34853 is a permission bypass vulnerability in Huawei's Location-Based Services (LBS) module affecting HarmonyOS 4.0.0-4.3.1 and EMUI 14.0.0-15.0.0. The vulnerability allows attackers to bypass permission controls, potentially impacting service availability. With no patch currently available and moderate CVSS score of 7.7, organizations using affected Huawei devices require immediate compensating controls and monitoring.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 29, 2026 18:17
🇸🇦 Saudi Arabia Impact Assessment
Saudi organizations heavily reliant on Huawei devices face significant risk, particularly: (1) Telecommunications sector (STC, Mobily, Zain) operating Huawei network infrastructure and employee devices; (2) Government agencies and NCA using Huawei smartphones and IoT devices; (3) Banking sector (SAMA-regulated banks) with employee mobile devices; (4) Energy sector (ARAMCO) with connected IoT and mobile deployments; (5) Healthcare institutions using Huawei medical devices with location services. The LBS permission bypass could enable unauthorized location tracking, data exfiltration, and service disruption across critical infrastructure.
🏢 Affected Saudi Sectors
Telecommunications Government Banking Energy Healthcare Defense Critical Infrastructure
⚖️ Saudi Risk Score (AI)
7.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Inventory all Huawei devices running HarmonyOS 4.0.0-4.3.1 or EMUI 14.0.0-15.0.0 across your organization
2. Disable LBS/location services on non-critical devices until patch availability
3. Restrict application permissions for location access via device management policies
4. Monitor for suspicious location data access patterns in application logs

Compensating Controls:
1. Implement Mobile Device Management (MDM) to enforce location permission restrictions
2. Deploy network-level monitoring to detect unauthorized location service communications
3. Restrict LBS module network connectivity using firewall rules where possible
4. Enable enhanced logging for all location-based service requests
5. Implement geofencing policies to limit location data exposure

Detection Rules:
1. Monitor for unexpected LBS module process execution with elevated privileges
2. Alert on permission bypass attempts in system logs (search: "permission denied" followed by successful access)
3. Track unusual location data queries from non-location-dependent applications
4. Monitor for LBS module crashes or unexpected restarts indicating exploitation attempts

Patching Guidance:
1. Subscribe to Huawei security bulletins for patch release notifications
2. Establish testing environment for patch validation before enterprise deployment
3. Plan phased rollout of patches once available, prioritizing critical infrastructure devices
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. قم بحصر جميع أجهزة هواوي التي تعمل بـ HarmonyOS 4.0.0-4.3.1 أو EMUI 14.0.0-15.0.0 في مؤسستك
2. قم بتعطيل خدمات LBS/الموقع الجغرافي على الأجهزة غير الحرجة حتى توفر التصحيح
3. قيد أذونات التطبيقات للوصول إلى الموقع من خلال سياسات إدارة الأجهزة
4. راقب أنماط الوصول المريبة لبيانات الموقع في سجلات التطبيقات

الضوابط التعويضية:
1. تطبيق إدارة أجهزة الجوال (MDM) لفرض قيود أذونات الموقع
2. نشر المراقبة على مستوى الشبكة للكشف عن اتصالات خدمة الموقع غير المصرح بها
3. تقييد اتصال وحدة LBS بالشبكة باستخدام قواعد جدار الحماية حيث أمكن
4. تفعيل السجلات المحسنة لجميع طلبات خدمة الموقع
5. تطبيق سياسات التحديد الجغرافي لتحديد تعرض بيانات الموقع

قواعد الكشف:
1. راقب تنفيذ عملية وحدة LBS غير المتوقعة بامتيازات مرتفعة
2. تنبيهات محاولات تجاوز الأذونات في سجلات النظام
3. تتبع استعلامات بيانات الموقع غير العادية من التطبيقات غير المعتمدة على الموقع
4. راقب أعطال وحدة LBS أو إعادة التشغيل غير المتوقعة

إرشادات التصحيح:
1. اشترك في نشرات أمان هواوي للحصول على إشعارات إصدار التصحيح
2. أنشئ بيئة اختبار للتحقق من صحة التصحيح قبل النشر على مستوى المؤسسة
3. خطط لنشر مرحلي للتصحيحات بمجرد توفرها، مع إعطاء الأولوية لأجهزة البنية التحتية الحرجة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information security policies and procedures A.6.1.1 - Access control policy A.6.2.1 - User registration and de-registration A.8.2.1 - Classification of information A.12.6.1 - Management of technical vulnerabilities
🔵 SAMA CSF
ID.AM-2 - Software platforms and applications are inventoried PR.AC-1 - Identities and credentials are issued, managed, verified, revoked, and audited PR.AC-4 - Access is managed based on the principle of least privilege DE.CM-1 - The network is monitored to detect potential cybersecurity events RS.MI-1 - Incidents are contained
🟡 ISO 27001:2022
A.5.1.1 - Policies for information security A.6.1.1 - Access control policy A.6.2.1 - User registration and access provisioning A.8.1.1 - Inventory of assets A.12.6.1 - Management of technical vulnerabilities
📦 Affected Products / CPE 7 entries
huawei:harmonyos:4.0.0
huawei:harmonyos:4.2.0
huawei:harmonyos:4.3.0
huawei:harmonyos:4.3.1
huawei:emui:14.0.0
huawei:emui:14.2.0
huawei:emui:15.0.0
📊 CVSS Score
7.7
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredH — High
User InteractionR — Required
ScopeC — Changed
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.7
CWECWE-270
EPSS0.01%
Exploit No
Patch ✗ No
Published 2026-04-13
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.2
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-270
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