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Vulnerabilities

CVE-2026-3509

High
An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit Log of the CODESYS Control runtime system, potentially resulting in a denial‑of‑service (
CWE-134 — Weakness Type
Published: Mar 24, 2026  ·  Modified: Mar 30, 2026  ·  Source: NVD
CVSS v3
7.5
🔗 NVD Official
📄 Description (English)

An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit Log of the CODESYS Control runtime system, potentially resulting in a denial‑of‑service (DoS) condition.

🤖 AI Executive Summary

CVE-2026-3509 is a format string vulnerability in CODESYS Control runtime's Audit Log that allows unauthenticated remote attackers to cause denial-of-service conditions. The vulnerability affects industrial control systems and could disrupt critical operations in manufacturing and infrastructure environments.

📄 Description (Arabic)

ثغرة تنسيق السلسلة في سجل التدقيق لنظام CODESYS Control تسمح للمهاجمين البعيدين غير المصرحين بالتحكم في معاملات التنسيق. يمكن استغلال هذه الثغرة لإحداث حالات رفض الخدمة تؤثر على توفر الأنظمة الصناعية الحرجة.

🤖 ملخص تنفيذي (AI)

ثغرة CVE-2026-3509 هي ثغرة في سلسلة التنسيق في سجل التدقيق لنظام تشغيل CODESYS Control تسمح للمهاجمين البعيدين غير المصرحين بإحداث حالات رفض الخدمة. تؤثر الثغرة على أنظمة التحكم الصناعية وقد تعطل العمليات الحرجة في بيئات التصنيع والبنية التحتية.

🤖 AI Intelligence Analysis Analyzed: May 2, 2026 23:16
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
energy government manufacturing healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
7.0
/ 10.0
🔧 Remediation Steps (English)
Update CODESYS Control runtime to the latest patched version immediately. Implement network segmentation to restrict access to the Audit Log interface. Deploy intrusion detection systems to monitor for format string attack patterns. Apply input validation and sanitization controls. Restrict remote access to CODESYS systems using firewall rules and VPN.
🔧 خطوات المعالجة (العربية)
قم بتحديث نظام تشغيل CODESYS Control إلى أحدث إصدار مصحح فوراً. قم بتنفيذ تقسيم الشبكة لتقييد الوصول إلى واجهة سجل التدقيق. نشر أنظمة كشف الاختراق لمراقبة أنماط هجمات سلسلة التنسيق. تطبيق التحقق من صحة المدخلات والضوابط التطهير. تقييد الوصول البعيد إلى أنظمة CODESYS باستخدام قواعد جدار الحماية و VPN.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC-1.1 ECC-2.2 ECC-3.1
🔵 SAMA CSF
ID.BE-1 PR.AC-1 PR.PT-1 DE.CM-1
🟡 ISO 27001:2022
A.12.6.1 A.14.2.1 A.14.2.5
📊 CVSS Score
7.5
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack VectorN — None / Network
Attack ComplexityL — Low / Local
Privileges RequiredN — None / Network
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.5
CWECWE-134
Exploit No
Patch ✗ No
Published 2026-03-24
Source Feed nvd
Views 4
🇸🇦 Saudi Risk Score
7.0
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
CWE-134
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