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Vulnerabilities

CVE-2025-61944

High
Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via
CWE-122 — Weakness Type
Published: Feb 3, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
8.0
🔗 NVD Official
📄 Description (English)

Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet containing an excessive number of fields with zero‑length values.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.

🤖 AI Executive Summary

A heap-based buffer overflow vulnerability in TP-Link Archer AX53 firmware (versions 1.0-1.3.1) allows authenticated adjacent attackers to cause denial of service or arbitrary code execution through specially crafted network packets. This affects widely deployed enterprise and residential networking equipment in Saudi Arabia. A patch is available and should be deployed immediately given the high CVSS score of 8.0 and potential for code execution.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 26, 2026 13:55
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability poses significant risk to Saudi telecommunications infrastructure (STC, Mobily, Zain), government networks (NCA, CITC), and enterprise environments. TP-Link Archer AX53 routers are commonly deployed in corporate networks, ISP infrastructure, and government facilities. Successful exploitation could lead to network compromise, lateral movement into critical systems, and data exfiltration. Banking sector (SAMA-regulated institutions) and energy sector (ARAMCO, SEC) networks using these devices as edge equipment face elevated risk. The requirement for authenticated adjacent access limits exposure but remains concerning in shared network environments and supply chain scenarios.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain) Government (NCA, CITC, Ministry networks) Banking and Financial Services (SAMA-regulated) Energy (ARAMCO, SEC) Healthcare Enterprise/Corporate Networks ISP Infrastructure
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
IMMEDIATE ACTIONS:
1. Identify all TP-Link Archer AX53 devices in your network using network scanning tools (nmap, Shodan queries for Saudi IP ranges)
2. Isolate affected devices from critical network segments if patching cannot be completed within 24 hours
3. Restrict administrative access to these devices to authorized personnel only
4. Monitor network traffic for suspicious patterns targeting these devices

PATCHING GUIDANCE:
1. Download firmware version 1.3.2 or later from TP-Link official support portal
2. Perform firmware update through device web interface (192.168.0.1) or management console
3. Verify successful update by checking firmware version in device settings
4. Test network connectivity and VPN/security appliance functionality post-update

COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement network segmentation isolating these devices from sensitive systems
2. Deploy IDS/IPS rules to detect malformed packets with excessive zero-length fields
3. Restrict SSH/Telnet access to these devices via firewall rules
4. Enable device logging and forward logs to SIEM for anomaly detection
5. Implement MAC filtering and disable WPS if not required

DETECTION RULES:
1. Monitor for segmentation faults or device reboots on Archer AX53 devices
2. Alert on network packets with unusual field structures targeting port 80/443 on these devices
3. Track failed authentication attempts followed by crafted packet sequences
4. Monitor tmpserver process crashes in device logs
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة TP-Link Archer AX53 في شبكتك باستخدام أدوات المسح (nmap، استعلامات Shodan للنطاقات السعودية)
2. عزل الأجهزة المتأثرة عن القطاعات الحرجة إذا لم يكن التصحيح ممكناً خلال 24 ساعة
3. تقييد الوصول الإداري لهذه الأجهزة للموظفين المصرح لهم فقط
4. مراقبة حركة المرور على الشبكة للأنماط المريبة التي تستهدف هذه الأجهزة

إرشادات التصحيح:
1. تحميل إصدار البرنامج الثابت 1.3.2 أو أحدث من بوابة دعم TP-Link الرسمية
2. تنفيذ تحديث البرنامج الثابت من خلال واجهة الويب للجهاز (192.168.0.1) أو وحدة الإدارة
3. التحقق من نجاح التحديث بفحص إصدار البرنامج الثابت في إعدادات الجهاز
4. اختبار اتصال الشبكة وعمل VPN/أجهزة الأمان بعد التحديث

الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تنفيذ تقسيم الشبكة لعزل هذه الأجهزة عن الأنظمة الحساسة
2. نشر قواعد IDS/IPS للكشف عن الحزم المشوهة ذات الحقول الفارغة الزائدة
3. تقييد وصول SSH/Telnet لهذه الأجهزة عبر قواعد جدار الحماية
4. تفعيل تسجيل الجهاز وإرسال السجلات إلى SIEM للكشف عن الشذوذ
5. تنفيذ تصفية MAC وتعطيل WPS إذا لم تكن مطلوبة

قواعد الكشف:
1. مراقبة أخطاء التقسيم أو إعادة تشغيل الجهاز على أجهزة Archer AX53
2. التنبيه على حزم الشبكة ذات البنية غير العادية التي تستهدف المنفذ 80/443 على هذه الأجهزة
3. تتبع محاولات المصادقة الفاشلة متبوعة بتسلسلات الحزم المصممة خصيصاً
4. مراقبة أعطال عملية tmpserver في سجلات الجهاز
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 A.8.1 - Asset Management and Inventory ECC 2024 A.12.6 - Change Management ECC 2024 A.14.2 - System Development and Maintenance ECC 2024 A.16.1 - Information Security Incident Management
🔵 SAMA CSF
SAMA CSF ID.AM-2 - Hardware and Software Assets SAMA CSF PR.IP-3 - Configuration Management SAMA CSF DE.CM-1 - Network Monitoring SAMA CSF RS.MI-1 - Incident Response Procedures
🟡 ISO 27001:2022
ISO 27001:2022 A.5.19 - Addressing Information Security in Supplier Relationships ISO 27001:2022 A.8.1 - Asset Management ISO 27001:2022 A.8.2 - Information Classification ISO 27001:2022 A.12.6 - Change Management ISO 27001:2022 A.14.2 - System Development and Maintenance
🟣 PCI DSS v4.0.1
PCI DSS 6.2 - Security Patches and Updates PCI DSS 11.2 - Vulnerability Scanning
📦 Affected Products / CPE 1 entries
tp-link:archer_ax53_firmware:1.0
📊 CVSS Score
8.0
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorA — Adjacent
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score8.0
CWECWE-122
EPSS0.03%
Exploit No
Patch ✓ Yes
Published 2026-02-03
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
7.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-122
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