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.

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.

Format string vulnerability in F-Secure Anti-Virus Client Security 6.02 allows local users to cause a denial of service and possibly gain privileges via format string specifiers in the Management Server name field on the Communication settings page.