F-Secure Internet Security 2010 and earlier; Anti-Virus for Microsoft Exchange 9 and earlier, and for MIMEsweeper 5.61 and earlier; Internet Gatekeeper for Windows 6.61 and earlier, and for Linux 4.02 and earlier; Anti-Virus 2010 and earlier; Home Server Security 2009; Protection Service for Consumers 9 and earlier, for Business - Workstation security 9 and earlier, for Business - Server Security 8 and earlier, and for E-mail and Server security 9 and earlier; Mac Protection build 8060 and earlier; Client Security 9 and earlier; and various Anti-Virus products for Windows, Linux, and Citrix; does not properly detect malware in crafted (1) 7Z, (2) GZIP, (3) CAB, or (4) RAR archives, which makes it easier for remote attackers to avoid detection.

Integer overflow in multiple F-Secure anti-virus products, including Internet Security 2006 through 2008, Anti-Virus 2006 through 2008, and others, when configured to scan inside compressed archives, allows remote attackers to execute arbitrary code via a crafted RPM compressed archive file, which triggers a buffer overflow.

Multiple F-Secure anti-virus products for Microsoft Windows and Linux before 20070619 allow remote attackers to bypass scanning via a crafted header in a (1) LHA or (2) RAR archive.