Software⏱️ 4 min read📅 2026-06-11

How to Fix CVE-2018 Error – Remote desktop connection error after updating Windows 2018/05/08 - CredSSP updates for CVE-2018-0886

Windows Update error fix for CVE-2018-0886 CredSSP issue.

Quick Answer: Update Windows to the latest version, disable CredSSP, and try connecting again.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. ✅ Best Solutions to Fix It
  3. 💡 Conclusion

After updating Windows 2018/05/08, you may experience an error when trying to connect to a server usingRemote Desktop Connection. This issue affects users who have not explicitly configured their systems to use authentication methods other than CredSSP (Credential Secure Shared Protocol). The error message points to CVE-2018-0886, which was related to an update that changed the default setting from Vulnerable to Mitigated.

This issue can be frustrating as it prevents users from accessing remote desktop sessions on servers that were previously accessible. Fortunately, there are steps you can take to resolve this issue and regain access to your remote desktop connections.

🛑 Root Causes of the Error

  • The primary reason for this error is the change in default CredSSP settings. The update from Vulnerable to Mitigated aims to improve security by making it more difficult for attackers to exploit vulnerabilities. However, if you have not explicitly configured your system to use alternative authentication methods, you may encounter this issue.
  • An alternative reason could be that the server's CredSSP version is outdated or incompatible with your client system.

✅ Best Solutions to Fix It

Configuring an Alternative Authentication Method

  1. Step 1: Step 1: Open the Remote Desktop Connection (RDC) settings on your client machine. Right-click on the RDC icon in the system tray and select 'Properties'.
  2. Step 2: Step 2: In the Properties window, click on the 'Security' tab and then click on the 'Advanced' button.
  3. Step 3: Step 3: In the Advanced Security Settings window, click on the 'CredSSP' tab and select 'Use only the secure CredSSP version of Remote Desktop'.
  4. Step 4: Step 4: Click 'OK' to save your changes. This will configure your client system to use an alternative authentication method, bypassing the CredSSP issue.
  5. Step 5: Method 2: Updating Server Configuration (Alternative Solution)
  6. Step 6: method_2_steps
  7. Step 7: Step 1: On the server, open the Group Policy Editor (gpedit.msc). Navigate to Computer Configuration > Windows Settings > Security Settings > Remote Desktop Service > Security Options.
  8. Step 8: Step 2: In the Security Options window, double-click on 'Allow remote connections to this computer from users in my organization' and select 'Enabled'.
  9. Step 9: Step 3: Double-click on 'Configure CredSSP' and select 'Enabled'. This will configure the server to use a secure CredSSP version.
  10. Step 10: Conclusion: By following these steps, you should be able to resolve the Remote Desktop Connection error caused by the Windows update. Remember to always check for updates and ensure your systems are configured correctly to avoid similar issues in the future.

Alternative Advanced Fix

    💡 Conclusion

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