CVE-2024-21326 — AI Deep Analysis Summary

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-416** (Use After Free). 🔍 **Flaw**: The browser likely accesses memory after it has been freed, leading to unpredictable behavior and potential code execution.

Q: Who is affected? (Versions/Components)

📦 **Affected**: **Microsoft Edge** (Chromium-based version). 💻 **OS**: Windows 10 and later versions. 🏢 **Vendor**: Microsoft.

Q: Is exploitation threshold high? (Auth/Config)

⚠️ **Threshold**: **Low** complexity, but requires **User Interaction** (UI:R). 🔑 **Auth**: No privileges required (PR:N). 🌐 **Network**: Remote (AV:N).

Q: Is there a public Exp? (PoC/Wild Exploitation)

🚫 **Public Exploit**: **None** currently available. 📝 **Status**: No PoCs in the provided data. 👀 **Watch**: Monitor CNNVD or vendor advisories for new developments.

Q: Is it fixed officially? (Patch/Mitigation)

✅ **Official Fix**: Yes. 📥 **Patch**: Refer to the **Microsoft Security Response Center (MSRC)** update guide. 🔗 **Link**: ms.microsoft.com/update-guide/vulnerability/CVE-2024-21326

Q: What if no patch? (Workaround)

🛑 **No Patch Workaround**: 1. **Disable** Edge if not needed. 2. **Restrict** user privileges. 3. **Block** malicious URLs via proxy/firewall. 4. **Update** immediately when patch is released.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. 📊 **CVSS**: High severity (H/H/H). ⏳ **Priority**: Patch immediately. Remote exploitation with user interaction is a significant risk for enterprise environments.

Updated May 08, 2026 CVSS 9.6 · Critical

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Microsoft Edge (Chromium-based) suffers from an **Elevation of Privilege** vulnerability. <br>⚡ **Consequences**: Attackers can gain **High** access to Confidentiality, Integrity, and Availability.…

Read full answer (login)

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-416** (Use After Free). <br>🔍 **Flaw**: The browser likely accesses memory after it has been freed, leading to unpredictable behavior and potential code execution.

Q3Who is affected? (Versions/Components)

📦 **Affected**: **Microsoft Edge** (Chromium-based version). <br>💻 **OS**: Windows 10 and later versions. <br>🏢 **Vendor**: Microsoft.

Q4What can hackers do? (Privileges/Data)

💀 **Attacker Actions**: Elevate privileges from user level to **System/Admin** level.…

Read full answer (login)

Q5Is exploitation threshold high? (Auth/Config)

⚠️ **Threshold**: **Low** complexity, but requires **User Interaction** (UI:R). <br>🔑 **Auth**: No privileges required (PR:N). <br>🌐 **Network**: Remote (AV:N).

Q6Is there a public Exp? (PoC/Wild Exploitation)

🚫 **Public Exploit**: **None** currently available. <br>📝 **Status**: No PoCs in the provided data. <br>👀 **Watch**: Monitor CNNVD or vendor advisories for new developments.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Verify if you are running **Microsoft Edge (Chromium-based)**. <br>📡 **Scanning**: Check for unpatched versions of Edge on Windows 10/11 systems.…

Read full answer (login)

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Official Fix**: Yes. <br>📥 **Patch**: Refer to the **Microsoft Security Response Center (MSRC)** update guide. <br>🔗 **Link**: ms.microsoft.com/update-guide/vulnerability/CVE-2024-21326

Q9What if no patch? (Workaround)

🛑 **No Patch Workaround**: <br>1. **Disable** Edge if not needed. <br>2. **Restrict** user privileges. <br>3. **Block** malicious URLs via proxy/firewall. <br>4. **Update** immediately when patch is released.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. <br>📊 **CVSS**: High severity (H/H/H). <br>⏳ **Priority**: Patch immediately. Remote exploitation with user interaction is a significant risk for enterprise environments.

Continue exploring

Vulnerability detail Full AI analysis (login) Microsoft CWE-416