INITIALIZING
📧 info@ciso.sa | 📱 +966550939344 | Riyadh, Kingdom of Saudi Arabia
🔧 Scheduled Maintenance — Saturday 2:00-4:00 AM AST. Some features may be temporarily unavailable.    ●   
💎
Pro Plan 50% Off Unlock all AI features, unlimited reports, and priority support. Upgrade
Search Center
ESC to close
Global vulnerability Industrial Control Systems / IoT / Infrastructure CRITICAL 50m Global phishing Multiple sectors HIGH 1h Global insider Cybersecurity Services CRITICAL 1h Global ransomware Multiple sectors (U.S. companies) CRITICAL 2h Global malware Financial Services, Cryptocurrency CRITICAL 2h Global malware Technology and Cloud Services HIGH 2h Global general Financial Services and E-commerce MEDIUM 2h Global data_breach Social Media and Communications CRITICAL 2h Global general Cybersecurity Operations HIGH 3h Global phishing Technology and Consumer Services HIGH 3h Global vulnerability Industrial Control Systems / IoT / Infrastructure CRITICAL 50m Global phishing Multiple sectors HIGH 1h Global insider Cybersecurity Services CRITICAL 1h Global ransomware Multiple sectors (U.S. companies) CRITICAL 2h Global malware Financial Services, Cryptocurrency CRITICAL 2h Global malware Technology and Cloud Services HIGH 2h Global general Financial Services and E-commerce MEDIUM 2h Global data_breach Social Media and Communications CRITICAL 2h Global general Cybersecurity Operations HIGH 3h Global phishing Technology and Consumer Services HIGH 3h Global vulnerability Industrial Control Systems / IoT / Infrastructure CRITICAL 50m Global phishing Multiple sectors HIGH 1h Global insider Cybersecurity Services CRITICAL 1h Global ransomware Multiple sectors (U.S. companies) CRITICAL 2h Global malware Financial Services, Cryptocurrency CRITICAL 2h Global malware Technology and Cloud Services HIGH 2h Global general Financial Services and E-commerce MEDIUM 2h Global data_breach Social Media and Communications CRITICAL 2h Global general Cybersecurity Operations HIGH 3h Global phishing Technology and Consumer Services HIGH 3h
Vulnerabilities

CVE-2026-21509

Critical 🇺🇸 CISA KEV ⚡ Exploit Available
CVE-2026-21509: Microsoft Office Security Feature Bypass Vulnerability
Published: Jan 26, 2026  ·  Source: CISA_KEV
CVSS v3
9.0
🔗 NVD Official
📄 Description (English)

Microsoft Office Security Feature Bypass Vulnerability — Microsoft Office contains a security feature bypass vulnerability in which reliance on untrusted inputs in a security decision in Microsoft Office could allow an unauthorized attacker to bypass a security feature locally. Some of the impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.

🤖 AI Executive Summary

Microsoft Office contains a security feature bypass vulnerability allowing attackers to bypass security controls through untrusted inputs. This critical vulnerability affects multiple Office versions including end-of-life products and requires immediate patching or migration to supported versions.

📄 Description (Arabic)

تسمح هذه الثغرة الحرجة للمهاجمين بتجاوز ميزات الأمان في Microsoft Office من خلال استغلال الاعتماد على مدخلات غير موثوقة في قرارات الأمان. تؤثر الثغرة على عدة إصدارات من Office بما في ذلك المنتجات المنتهية الدعم والخدمة. يُنصح المستخدمون بالتوقف الفوري عن استخدام الإصدارات المتأثرة والترقية إلى إصدارات مدعومة.

🤖 ملخص تنفيذي (AI)

تحتوي Microsoft Office على ثغرة تجاوز ميزة الأمان التي تسمح للمهاجمين بتجاوز عناصر التحكم الأمنية من خلال مدخلات غير موثوقة. تؤثر هذه الثغرة الحرجة على إصدارات Office المتعددة بما في ذلك المنتجات المنتهية الدعم.

🤖 AI Intelligence Analysis Analyzed: Apr 13, 2026 17:36
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: high
🏢 Affected Saudi Sectors
banking government telecom healthcare energy
⚖️ Saudi Risk Score (AI)
9.0
/ 10.0
🔧 Remediation Steps (English)
Immediately apply security patches from Microsoft for all affected Office versions. For end-of-life products, migrate to currently supported Office versions. Implement application whitelisting and disable macros in untrusted documents. Monitor for suspicious Office document activity and restrict file execution permissions.
🔧 خطوات المعالجة (العربية)
طبق فوراً تصحيحات الأمان من Microsoft لجميع إصدارات Office المتأثرة. بالنسبة للمنتجات المنتهية الدعم، قم بالترقية إلى إصدارات Office المدعومة حالياً. طبق قائمة التطبيقات المسموحة وعطل وحدات الماكرو في المستندات غير الموثوقة. راقب نشاط مستندات Office المريب وقيد صلاحيات تنفيذ الملفات.
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
5.1.1 5.1.2 5.2.1
🔵 SAMA CSF
AC-2 AC-3 SI-4
🟡 ISO 27001:2022
A.9.1.1 A.9.2.1 A.12.6.1
🔗 References & Sources 0
No references.
📦 Affected Products / CPE 1 entries
Microsoft:Office
📊 CVSS Score
9.0
/ 10.0 — Critical
📋 Quick Facts
Severity Critical
CVSS Score9.0
EPSS10.07%
Exploit ✓ Yes
Patch ✓ Yes
CISA KEV🇺🇸 Yes
KEV Due Date2026-02-16
Published 2026-01-26
Source Feed cisa_kev
Views 2
🇸🇦 Saudi Risk Score
9.0
/ 10.0 — Saudi Risk
Priority: CRITICAL
🏷️ Tags
kev actively-exploited
Share this CVE
📣 Found this valuable?
Share it with your cybersecurity network
in LinkedIn 𝕏 X / Twitter 💬 WhatsApp ✈ Telegram
🍪 Privacy Preferences
CISO Consulting — Compliant with Saudi Personal Data Protection Law (PDPL)
We use cookies and similar technologies to provide the best experience on our platform. You can choose which types you accept.
🔒
Essential Always On
Required for the website to function properly. Cannot be disabled.
📋 Sessions, CSRF tokens, authentication, language preferences
📊
Analytics
Help us understand how visitors use the site and improve performance.
📋 Page views, session duration, traffic sources, performance metrics
⚙️
Functional
Enable enhanced features like content personalization and preferences.
📋 Dark/light theme, font size, custom dashboards, saved filters
📣
Marketing
Used to deliver content and ads relevant to your interests.
📋 Campaign tracking, retargeting, social media analytics
Privacy Policy →
CISO AI Assistant
Ask anything · Documents · Support
🔐

Introduce Yourself

Enter your details to access the full assistant

Your info is private and never shared
💬
CyberAssist
Online · responds in seconds
5 / 5
🔐 Verify Your Identity

Enter your email to receive a verification code before submitting a support request.

Enter to send · / for commands 0 / 2000
CISO AI · Powered by Anthropic Claude
✦ Quick Survey Help Us Improve CISO Consulting Your feedback shapes the future of our platform — takes less than 2 minutes.
⚠ Please answer this question to continue

How would you rate your overall experience with our platform?

Rate from 1 (poor) to 5 (excellent)

🎉
Thank you!
Your response has been recorded.