Clash for Windows 0.20.21

❓ Here are some recurring questions and related user issues:

1. Has Clash for Windows experienced any security vulnerabilities?

Answer:
Yes, Clash for Windows has experienced several known vulnerabilities:

• CVE-2023-24205
  Remote code execution via malicious overwrite of cfw-setting.yaml.
  GitHub Advisory
  GitHub Issue #3891

• CVE-2024-5732
  Authentication bypass in proxy port component up to v0.20.1.

• CVE-2022-26255
  Arbitrary code execution via payload in the Proxies name column in v0.19.8.

Recommendation:
Always use the latest version of Clash for Windows to receive security patches.

2. Why does Clash for Windows fail to connect or show proxy timeouts?

Answer:
Common causes include:

• Invalid or outdated configuration files.
• Conflicts with other VPNs or proxy tools.
• Firewall or antivirus blocking connections.

Solution:

• Verify your config file is valid and up-to-date.
• Temporarily disable firewalls or antivirus to test.
• Use System Proxy mode if needed.

3. Why is Clash for Windows not working on Linux systems?

Answer:
Clash for Windows is primarily developed for Windows. On Linux, users attempting to run it (e.g., via Wine or Flatpak) report issues such as:

• Installation freezing.
• Executable failing with error: Failed to execute process: './cfw'.

Solution:
Use native Clash alternatives for Linux, such as:

• Clash.Meta
• Clash Premium

4. Why does Telegram Desktop not connect when using Clash for Windows?

Answer:
Telegram may not route traffic correctly through the proxy when Clash for Windows is active.

Solution:

• In Clash settings, enable "System Proxy."
• Or manually configure Telegram’s proxy using Clash's running port (usually 127.0.0.1:7890).

Reference:
GitHub Issue Example

5. Why does Clash for Windows crash or not start?

Answer:
Possible reasons include:

• Corrupted installation files.
• Conflicts with other applications.
• Insufficient permissions.

Solution:

• Reinstall Clash for Windows.
• Right-click and select Run as Administrator.
• Check Windows Event Viewer for crash logs.

6. Why does Clash for Windows fail to import some proxy profiles?

Answer:
Common issues in configuration files:

• Missing cipher field for Shadowsocks nodes.
• Using outdated or incorrect schema values (e.g., shadowsocks instead of ss).

Solution:
Check your YAML format using YAML Linter.
Ensure correct schema per Clash documentation.

7. How can I securely configure Clash for Windows?

Answer:

• Only use configuration files from trusted sources.
• Regularly update the app from the official GitHub page.
• Avoid exposing ports publicly.
• Set authentication if enabling external controller ports.

Official FAQ:
Clash for Windows FAQ