Integer overflow in the packed PE file parsing implementation in BitDefender products before 20060829, including Antivirus, Antivirus Plus, Internet Security, Mail Protection for Enterprises, and Online Scanner; and BitDefender products for Microsoft ISA Server and Exchange 5.5 through 2003; allows remote attackers to execute arbitrary code via a crafted file, which triggers a heap-based buffer overflow, aka the "cevakrnl.xmd vulnerability."

Unquoted Windows search path vulnerability in BitDefender 8 allows local users to prevent BitDefender from starting by creating a malicious C:\program.exe, possibly due to the lack of quoting of the full pathname when executing a process.