revision 1775775 fixes:
mod_proxy_{ajp,fcgi}: Fix a possible crash when reusing an established
backend connection, happening with LogLevel trace2 or higher configured,
or at any log level with compilers not detected as C99 compliant (e.g.
MSVC on Windows).
See this forum post (https://www.apachehaus.com/forum/index.php?topic=1457.0) for description of the bug.
Since I forgot to put a copy of the patch in these zip files, you can view it here (http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c?r1=1775775&r2=1775774&pathrev=1775775&view=patch)
Download the update for your VC version of 2.4.25 HERE (https://www.apachehaus.com/updates/)
NOTE: If you are not using mod_proxy_ajp or mod_proxy_fcgi then this update is only optional.