CVE-2026-21525 — AI Deep Analysis Summary

🚨 **Essence**: A critical flaw in the **Windows Remote Access Connection Manager** service. <br>💥 **Consequences**: Attackers can trigger a **Denial of Service (DoS)**.…

🛡️ **Root Cause**: **CWE-476: NULL Pointer Dereference**. <br>🔍 **The Flaw**: The code attempts to access a memory pointer that is **NULL** (empty). This causes the application to crash immediately when triggered.…

📦 **Affected Product**: **Microsoft Windows 10 Version 1809**. <br>⚠️ **Note**: The data lists 'Windows 10 Version 1607' in the product field, but the description explicitly cites **Version 1809**.…

👤 **Privileges**: **Local Access Required**. <br>📉 **Impact**: **High Availability Loss (A:H)**. <br>🚫 **Data**: **No Confidentiality/Integrity loss (C:N, I:N)**. Hackers cannot read files or change settings.…

🔒 **Threshold**: **Low**. <br>📝 **Config**: **No Authentication (PR:N)** needed for the local vector. <br>🖱️ **User Interaction**: **None (UI:N)**. <br>📍 **Access Vector**: **Local (AV:L)**.…

💣 **Public Exploit**: **None Available**. <br>📄 **PoCs**: The `pocs` array is empty. <br>🌐 **Status**: No known wild exploitation. This is likely a theoretical or internal finding without public code snippets yet.

🔍 **Self-Check**: <br>1. Check if you are running **Windows 10 Version 1809**. <br>2. Verify the **Remote Access Connection Manager** service is present. <br>3.…

🩹 **Official Fix**: **Yes**. <br>🔗 **Reference**: Microsoft Security Response Center (MSRC) has issued an advisory. <br>✅ **Action**: Apply the latest **Windows Security Update** for Version 1809.…

🚧 **Workaround (No Patch)**: <br>1. **Disable the Service**: If VPN is not critical, disable the **Remote Access Connection Manager** service.…

🔥 **Urgency**: **Medium-High**. <br>📅 **Priority**: Patch immediately if you use **Windows 10 1809**. <br>💡 **Reason**: While it’s only a DoS (not RCE), it requires **no auth** and affects core connectivity.…