Multiple buffer overflows in the AirDefense Airsensor M520 with firmware 4.3.1.1 and 4.4.1.4 allow remote authenticated users to cause a denial of service (HTTPS service outage) via a crafted query string in an HTTPS request to (1) adLog.cgi, (2) post.cgi, or (3) ad.cgi, related to the "files filter."