404error.cgi using lot of CPU resources

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[barnaops]

Hello Community,

We are experiencing performance issues with a Mercury 50, a short lifetime process (few secs) called 404error.cgi is loaded and terminated almost all the time in our Endian.
We noticed it is the CGI script useb by the web server to handle 404 errors, however we have no clue which request ends up with this 404 error neither how to avoid this issue.

Does anyone already have this issue before or have any hint to solve it ?

thanks for help