Multiple format string vulnerabilities in the kavwebscan.CKAVWebScan ActiveX control (kavwebscan.dll) in Kaspersky Online Scanner before 5.0.98 allow remote attackers to execute arbitrary code via format string specifiers in "various string formatting functions," which trigger heap-based buffer overflows.
Use of Externally-Controlled Format String The product uses a function that accepts a format string as an argument, but the format string originates from an external source.