📄 Description (English)
A security vulnerability has been detected in UTT 进取 520W 1.7.7-180627. This vulnerability affects the function strcpy of the file /goform/formTimeGroupConfig. The manipulation of the argument year1 leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
🤖 AI Executive Summary
A critical buffer overflow vulnerability (CVE-2026-2067) exists in UTT 520W firmware version 1.7.7-180627 affecting the /goform/formTimeGroupConfig endpoint. The vulnerability allows remote attackers to execute arbitrary code by manipulating the 'year1' parameter through unsafe strcpy operations. With a CVSS score of 8.8, public exploit availability, and vendor non-responsiveness, this poses an immediate threat to organizations using affected devices.
📄 Description (Arabic)
🤖 AI Intelligence Analysis Analyzed: Apr 22, 2026 12:28
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi telecommunications infrastructure (STC, Mobily, Zain) and government agencies (NCA, CITC) that deploy UTT 520W devices for network management and time synchronization. Banking sector organizations (SAMA-regulated institutions) using these devices for network infrastructure are at elevated risk. Energy sector (ARAMCO, SEC) network management systems may also be affected. The remote exploitability without authentication makes this particularly dangerous for critical infrastructure operators.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain)
Government (NCA, CITC)
Banking (SAMA-regulated institutions)
Energy (ARAMCO, SEC)
Healthcare (MOH facilities)
Critical Infrastructure
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
8.9
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all UTT 520W devices running firmware 1.7.7-180627 in your network using network scanning tools
2. Isolate affected devices from internet-facing networks immediately
3. Implement network segmentation to restrict access to /goform/formTimeGroupConfig endpoint
4. Enable firewall rules to block suspicious requests to the vulnerable endpoint
PATCHING:
5. Contact UTT vendor for available firmware patches beyond 1.7.7-180627
6. Test patches in isolated lab environment before production deployment
7. Schedule emergency patching windows for all affected devices
8. Maintain backup configurations before patching
COMPENSATING CONTROLS (if patch unavailable):
9. Deploy Web Application Firewall (WAF) rules to filter malicious year1 parameter values
10. Implement input validation at network boundary using IDS/IPS signatures
11. Monitor for exploitation attempts using SIEM correlation rules
12. Restrict administrative access to device management interfaces
DETECTION:
13. Monitor logs for POST requests to /goform/formTimeGroupConfig with oversized year1 parameters
14. Alert on any process execution from web service processes
15. Track memory access violations and segmentation faults on affected devices
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة UTT 520W التي تعمل بالإصدار 1.7.7-180627 في شبكتك باستخدام أدوات المسح
2. عزل الأجهزة المتأثرة عن الشبكات المتصلة بالإنترنت فوراً
3. تطبيق تقسيم الشبكة لتقييد الوصول إلى نقطة النهاية /goform/formTimeGroupConfig
4. تفعيل قواعد جدار الحماية لحجب الطلبات المريبة إلى نقطة النهاية الضعيفة
التصحيح:
5. الاتصال بمورد UTT للحصول على تحديثات البرنامج الثابت المتاحة
6. اختبار التصحيحات في بيئة معزولة قبل النشر في الإنتاج
7. جدولة نوافذ تصحيح طارئة لجميع الأجهزة المتأثرة
8. الاحتفاظ بنسخ احتياطية من التكوينات قبل التصحيح
الضوابط البديلة:
9. نشر قواعد جدار تطبيقات الويب (WAF) لتصفية قيم معامل year1 الضارة
10. تطبيق التحقق من الإدخال على حدود الشبكة باستخدام توقيعات IDS/IPS
11. مراقبة محاولات الاستغلال باستخدام قواعد ارتباط SIEM
12. تقييد الوصول الإداري إلى واجهات إدارة الأجهزة
الكشف:
13. مراقبة السجلات للطلبات POST إلى /goform/formTimeGroupConfig بمعاملات year1 كبيرة الحجم
14. التنبيه على أي تنفيذ عملية من عمليات خدمة الويب
15. تتبع انتهاكات الوصول إلى الذاكرة وأخطاء التقسيم على الأجهزة المتأثرة
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.12.6.1 - Management of technical vulnerabilities
ECC 2024 A.14.2.1 - Secure development policy
ECC 2024 A.12.2.1 - Monitoring of system use
🔵 SAMA CSF
SAMA CSF ID.RA-1 - Asset management and vulnerability identification
SAMA CSF PR.IP-12 - Security patch management
SAMA CSF DE.CM-1 - Detection and monitoring systems
🟡 ISO 27001:2022
ISO 27001:2022 A.12.3.1 - Segregation of networks
ISO 27001:2022 A.14.2.1 - Secure development policy
ISO 27001:2022 A.12.6.1 - Management of technical vulnerabilities
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security patches for system components
PCI DSS 11.2 - Vulnerability scanning and remediation
🔗 References & Sources 5
🔗
https://github.com/cymiao1978/cve/blob/main/new/37.md
cna@vuldb.com
Exploit
Third Party Advisory
🔗
https://github.com/cymiao1978/cve/blob/main/new/37.md#poc
cna@vuldb.com
Exploit
🔗
https://vuldb.com/?ctiid.344634
cna@vuldb.com
Permissions Required
VDB Entry
🔗
https://vuldb.com/?id.344634
cna@vuldb.com
Third Party Advisory
VDB Entry
🔗
https://vuldb.com/?submit.745261
cna@vuldb.com
Third Party Advisory
VDB Entry
📦 Affected Products / CPE 1 entries
utt:520w_firmware:1.7.7-180627