WSAEACCES - 10013 (0x271D)
An attempt was made to access a socket in a way forbidden by its access permissions.
Updated: Feb 21, 2026
Technical Background
The WSAEACCES error code is a specific error returned by the Windows Sockets (Winsock) API when an attempt is made to access a socket in a manner that violates its current access permissions. This error typically indicates a failure due to insufficient privileges or incorrect usage of the socket.
Error Details
- Error Name: WSAEACCES
- Numeric Code: 10013 (0x271D)
- Short Description: An attempt was made to access a socket in a way forbidden by its access permissions.
Common Causes
The WSAEACCES error can occur due to the following reasons:
- Incorrect Access Permissions: The application may not have sufficient privileges to perform the requested operation on the socket.
- Invalid Socket Operation Context: Attempting an operation that is not supported by the current state of the socket (e.g., attempting to bind a socket to an address it already has).
Real-World Context
This error can arise in various scenarios, such as when an application attempts to modify or access a socket that is currently in use by another process or when the application lacks the necessary permissions to perform certain operations.
Is This Error Critical?
The criticality of this error depends on the specific operation being performed. If the application requires exclusive control over the socket, then WSAEACCES indicates a failure and may require corrective action. However, if the operation can be retried or modified, it might not be immediately critical.
How to Diagnose
To diagnose this error, consider the following steps:
- Review Operation Context: Ensure that the application has the correct permissions and is operating in an appropriate context.
- Validate Parameters: Check all parameters passed to socket operations for correctness and validity.
- Confirm Object Types: Verify that the operation being performed is supported by the current state of the socket.
How to Resolve
To resolve WSAEACCES errors, take the following actions:
- Correct Parameter Usage: Ensure that all parameters are correctly set and valid for the intended operation.
- Adjust Operation Context: If necessary, adjust the application's security context or permissions to allow the required operations.
- Retry Operation with Valid Inputs: If the error is due to temporary conditions, retrying the operation may resolve the issue.
Developer Notes
Developers should ensure that their applications handle WSAEACCES errors gracefully and provide appropriate feedback to users. Additionally, they should validate all socket operations to prevent such errors from occurring.
Related Errors
- WSAEADDRINUSE: The address is already in use by another process or application.
- WSAEINVAL: An invalid argument was supplied to a function.
- WSAENETDOWN: A network subsystem is down, preventing the operation from completing successfully.
FAQ
Q: What does WSAEACCES mean?
A: WSAEACCES indicates that an attempt was made to access a socket in a way forbidden by its current access permissions.
Q: How can I prevent this error?
A: Ensure your application has the correct permissions and validate all parameters before performing socket operations.
Summary
The WSAEACCES error is a specific indication that an operation on a socket was attempted in a manner not permitted by its current access controls. By understanding the causes, diagnosing issues, and taking appropriate actions, developers can effectively handle this error and ensure robust application behavior.