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Vulnerabilities

CVE-2025-62405

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 a field whose length exceeds the maximum expected value.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 network attackers to cause denial of service or execute arbitrary code through malformed packets. This affects widely deployed enterprise and residential routers 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 16:04
🇸🇦 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. Authenticated adjacent attackers (requiring network access) could compromise router integrity, leading to network segmentation bypass, lateral movement, or complete router takeover. Banking sector (SAMA-regulated institutions) and critical infrastructure operators face elevated risk if these routers are used in network perimeters.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain) Government (NCA, CITC, Ministry networks) Banking and Financial Services (SAMA-regulated) Energy (ARAMCO, power utilities) 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)
2. Verify firmware versions via router admin interface (Settings > System Tools > Firmware Upgrade)
3. Restrict network access to router management interfaces using firewall rules (limit to trusted IPs only)
4. Disable remote management features if not required

PATCHING:
1. Download latest firmware from TP-Link official support portal (verify digital signatures)
2. Schedule maintenance window for firmware updates (routers require restart)
3. Apply patches to all affected devices (v1.0 through v1.3.1 Build 20241120)
4. Verify successful update by checking firmware version post-reboot

COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement network segmentation to isolate router management traffic
2. Deploy IDS/IPS rules to detect malformed packets targeting tmpserver modules
3. Monitor router logs for segmentation faults or unexpected restarts
4. Implement 802.1X authentication for network access
5. Use VPN for all remote router administration

DETECTION:
1. Monitor for router crashes/reboots (syslog analysis)
2. Alert on failed authentication attempts to router interfaces
3. Detect oversized packet fields in network traffic analysis
4. Monitor tmpserver process behavior for anomalies
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة TP-Link Archer AX53 في شبكتك باستخدام أدوات المسح (nmap، استعلامات Shodan)
2. التحقق من إصدارات البرنامج الثابت عبر واجهة إدارة الموجه (الإعدادات > أدوات النظام > ترقية البرنامج الثابت)
3. تقييد الوصول إلى واجهات إدارة الموجه باستخدام قواعد جدار الحماية (تحديد الوصول للعناوين الموثوقة فقط)
4. تعطيل ميزات الإدارة البعيدة إذا لم تكن مطلوبة

تطبيق التصحيحات:
1. تحميل أحدث برنامج ثابت من بوابة دعم TP-Link الرسمية (التحقق من التوقيعات الرقمية)
2. جدولة نافذة صيانة لتحديثات البرنامج الثابت (تتطلب إعادة تشغيل الموجهات)
3. تطبيق التصحيحات على جميع الأجهزة المتأثرة (الإصدارات 1.0 إلى 1.3.1 Build 20241120)
4. التحقق من نجاح التحديث بفحص إصدار البرنامج الثابت بعد إعادة التشغيل

الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تنفيذ تقسيم الشبكة لعزل حركة إدارة الموجه
2. نشر قواعد IDS/IPS للكشف عن الحزم المشوهة التي تستهدف وحدات tmpserver
3. مراقبة سجلات الموجه للأعطال أو إعادة التشغيل غير المتوقعة
4. تنفيذ مصادقة 802.1X للوصول إلى الشبكة
5. استخدام VPN لجميع عمليات إدارة الموجه البعيدة

الكشف:
1. مراقبة أعطال/إعادة تشغيل الموجه (تحليل syslog)
2. التنبيه على محاولات المصادقة الفاشلة لواجهات الموجه
3. الكشف عن حقول الحزم الكبيرة في تحليل حركة الشبكة
4. مراقبة سلوك عملية tmpserver للكشف عن الشذوذ
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.5.1.1 - Information Security Policies (network device management) A.8.1.1 - User Access Management (router authentication controls) A.12.2.1 - Change Management (firmware update procedures) A.12.6.1 - Management of Technical Vulnerabilities (patch management)
🔵 SAMA CSF
ID.AM-2 - Asset Management (inventory of network devices) PR.IP-3 - Information Protection Processes (secure configuration) PR.PT-2 - Protective Technology (network segmentation) DE.CM-1 - Detection and Analysis (anomaly detection)
🟡 ISO 27001:2022
A.12.2.1 - Change management procedures A.12.6.1 - Management of technical vulnerabilities A.13.1.1 - Network security perimeter A.14.2.1 - System development and acceptance
🟣 PCI DSS v4.0.1
Requirement 1.2 - Configuration standards for network devices Requirement 6.2 - Security patches and updates Requirement 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
EPSS0.01%
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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