📄 Description (English)
Sticky Notes Widget 3.0.6 contains a denial of service vulnerability that allows attackers to crash the application by pasting excessively long character strings into note fields. Attackers can generate a payload containing 350000 repeated characters and paste it twice into a new note to trigger an application crash on iOS devices.
🤖 AI Executive Summary
CVE-2021-47973 is a denial of service vulnerability in Sticky Notes Widget 3.0.6 that crashes the application when users paste excessively long character strings (350,000+ characters) into note fields on iOS devices. While no public exploit is currently available and no patch has been released, the vulnerability poses a moderate risk to productivity and data availability for organizations relying on this application. The attack requires user interaction but can be trivially executed by any attacker with access to the application.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: May 21, 2026 01:38
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily affects Saudi government agencies, educational institutions, and corporate enterprises using iOS devices for note-taking and documentation. The impact is most significant for organizations in the public sector (NCA, ARAMCO, STC) and financial institutions that rely on mobile productivity applications for daily operations. The denial of service capability could disrupt workflow continuity and data accessibility, though the requirement for user interaction limits widespread exploitation. Healthcare organizations and research institutions using this application for clinical notes or research documentation face moderate risk of operational disruption.
🏢 Affected Saudi Sectors
Government
Education
Healthcare
Energy (ARAMCO)
Telecommunications (STC)
Financial Services
Corporate Enterprises
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
5.2
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Disable or uninstall Sticky Notes Widget 3.0.6 from all iOS devices until a patched version is available
2. Migrate critical notes to alternative applications (Apple Notes, Microsoft OneNote, or Notion)
3. Implement Mobile Device Management (MDM) policies to prevent installation of vulnerable versions
4. Educate users not to paste untrusted content or excessively long text strings into note applications
Compensating Controls:
1. Deploy MDM solutions to restrict application versions and enforce application allowlists
2. Monitor for application crashes and unexpected terminations on iOS devices
3. Implement network-level controls to prevent distribution of malicious payloads
4. Maintain regular backups of critical notes stored in alternative applications
Detection Rules:
1. Monitor iOS device logs for repeated application crashes of Sticky Notes Widget
2. Alert on clipboard operations involving strings exceeding 100,000 characters
3. Track application version inventory to identify devices running version 3.0.6
4. Implement behavioral analytics to detect unusual paste operations
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تعطيل أو إلغاء تثبيت Sticky Notes Widget 3.0.6 من جميع أجهزة iOS حتى يتوفر إصدار مصحح
2. نقل الملاحظات الحرجة إلى تطبيقات بديلة (Apple Notes أو Microsoft OneNote أو Notion)
3. تطبيق سياسات إدارة الأجهزة المحمولة (MDM) لمنع تثبيت الإصدارات الضعيفة
4. تثقيف المستخدمين بعدم لصق محتوى غير موثوق أو سلاسل نصية طويلة جداً في تطبيقات الملاحظات
الضوابط التعويضية:
1. نشر حلول MDM لتقييد إصدارات التطبيقات وفرض قوائم السماح بالتطبيقات
2. مراقبة توقف التطبيقات والإنهاء غير المتوقع على أجهزة iOS
3. تطبيق الضوابط على مستوى الشبكة لمنع توزيع الحمولات الضارة
4. الحفاظ على نسخ احتياطية منتظمة للملاحظات الحرجة المخزنة في تطبيقات بديلة
قواعد الكشف:
1. مراقبة سجلات أجهزة iOS لتوقفات متكررة لتطبيق Sticky Notes Widget
2. التنبيه على عمليات الحافظة التي تتضمن سلاسل تتجاوز 100,000 حرف
3. تتبع جرد إصدارات التطبيقات لتحديد الأجهزة التي تقوم بتشغيل الإصدار 3.0.6
4. تطبيق التحليلات السلوكية للكشف عن عمليات اللصق غير العادية
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.5.1 - Information Security Policies (application security requirements)
ECC 2024 A.8.1 - Asset Management (inventory and control of applications)
ECC 2024 A.12.6 - Technical Vulnerability Management (identification and remediation)
🔵 SAMA CSF
SAMA CSF ID.AM-1 - Asset Management (inventory of software applications)
SAMA CSF PR.IP-12 - Security Testing (vulnerability assessment)
SAMA CSF DE.CM-8 - Malware Detection (application behavior monitoring)
🟡 ISO 27001:2022
ISO 27001:2022 A.5.1 - Policies for Information Security
ISO 27001:2022 A.8.1 - Asset Inventory and Responsibility
ISO 27001:2022 A.12.6 - Management of Technical Vulnerabilities