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Vulnerabilities

CVE-2025-61983

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 network attackers to cause denial of service or potentially execute arbitrary code through specially crafted packets with excessive zero-length fields. 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 13:56
🇸🇦 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. Exploitation could lead to network compromise, lateral movement, and data exfiltration. Banking sector (SAMA-regulated institutions) and critical infrastructure operators using these devices face elevated risk. The authenticated requirement limits exposure but adjacent network access is achievable in shared network environments common in Saudi organizations.
🏢 Affected Saudi Sectors
Telecommunications (STC, Mobily, Zain) Government (NCA, CITC, Ministry networks) Banking and Financial Services (SAMA-regulated) Energy (ARAMCO, 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 inventory (versions 1.0-1.3.1)
2. Prioritize patching for devices in critical network segments (DMZ, core infrastructure)
3. Restrict network access to affected devices to authorized personnel only
4. Disable remote management features if not required

PATCHING GUIDANCE:
1. Download firmware version 1.3.2 or later from TP-Link official support portal
2. Apply patches during maintenance windows to minimize service disruption
3. Verify patch installation by checking firmware version in device management interface
4. Test network connectivity and performance post-patching

COMPENSATING CONTROLS (if immediate patching not possible):
1. Implement network segmentation to isolate affected devices
2. Deploy network-based intrusion detection rules to monitor for suspicious packet patterns
3. Enable device logging and monitor for segmentation faults or unexpected restarts
4. Restrict administrative access to affected devices via firewall rules
5. Monitor for unauthorized authentication attempts

DETECTION RULES:
1. Monitor for packets with excessive zero-length field values destined to tmpserver ports
2. Alert on segmentation faults or unexpected device restarts
3. Track failed authentication attempts followed by crafted packet transmission
4. Monitor heap memory allocation patterns for anomalies
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد جميع أجهزة TP-Link Archer AX53 في جرد الشبكة (الإصدارات 1.0-1.3.1)
2. إعطاء الأولوية لتصحيح الأجهزة في قطاعات الشبكة الحرجة (DMZ، البنية الأساسية الأساسية)
3. تقييد الوصول إلى الأجهزة المتأثرة للموظفين المصرح لهم فقط
4. تعطيل ميزات الإدارة البعيدة إذا لم تكن مطلوبة

إرشادات التصحيح:
1. تحميل إصدار البرنامج الثابت 1.3.2 أو أحدث من بوابة دعم TP-Link الرسمية
2. تطبيق التصحيحات أثناء نوافذ الصيانة لتقليل انقطاع الخدمة
3. التحقق من تثبيت التصحيح بفحص إصدار البرنامج الثابت في واجهة إدارة الجهاز
4. اختبار اتصال الشبكة والأداء بعد التصحيح

الضوابط البديلة (إذا لم يكن التصحيح الفوري ممكناً):
1. تنفيذ تقسيم الشبكة لعزل الأجهزة المتأثرة
2. نشر قواعد الكشف عن الاختراقات القائمة على الشبكة لمراقبة أنماط الحزم المريبة
3. تفعيل تسجيل الجهاز ومراقبة أخطاء التجزئة أو إعادة التشغيل غير المتوقعة
4. تقييد الوصول الإداري إلى الأجهزة المتأثرة عبر قواعد جدار الحماية
5. مراقبة محاولات المصادقة غير المصرح بها

قواعد الكشف:
1. مراقبة الحزم التي تحتوي على عدد مفرط من قيم الحقول الصفرية الموجهة إلى منافذ tmpserver
2. التنبيه على أخطاء التجزئة أو إعادة تشغيل الجهاز غير المتوقعة
3. تتبع محاولات المصادقة الفاشلة متبوعة بنقل الحزم المصممة خصيصاً
4. مراقبة أنماط تخصيص ذاكرة الكومة للكشف عن الشذوذ
📋 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 and logging of network activities
🔵 SAMA CSF
ID.RA-1 - Asset management and vulnerability identification PR.IP-12 - System and information integrity DE.CM-1 - Detection and analysis of anomalies
🟡 ISO 27001:2022
A.12.2.1 - Monitoring and logging A.12.6.1 - Management of technical vulnerabilities A.14.2.1 - Secure development policy
🟣 PCI DSS v4.0.1
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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