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.

F-Secure Anti-Virus 2003 through 2006 and other versions, Internet Security 2003 through 2006, and Service Platform for Service Providers 6.x and earlier allows remote attackers to bypass anti-virus scanning via a crafted filename.

F-Secure Anti-Virus 2003 through 2006 and other versions, Internet Security 2003 through 2006, and Service Platform for Service Providers 6.x and earlier does not scan files contained on removable media when "Scan network drives" is disabled, which allows remote attackers to bypass anti-virus controls.

Multiple interpretation error in various F-Secure Anti-Virus products, including Workstation 5.43 and earlier, Windows Servers 5.50 and earlier, MIMEsweeper 5.50 and earlier, Anti-Virus for Linux Servers and Gateways 4.61 and earlier, and other products, allows remote attackers to bypass antivirus protection via a compressed file with both local and global headers set to zero, which does not prevent the compressed file from being opened on the target system.

F-Secure Anti-Virus for Microsoft Exchange 6.30 and 6.31 does not properly detect certain password-protected files in a ZIP file, which allows remote attackers to bypass anti-virus protection.

A vulnerability affecting F-Secure SAFE browser was discovered. A maliciously crafted website attached with USSD code in JavaScript or iFrame can trigger dialer application from F-Secure browser which can be exploited by an attacker to send unwanted USSD messages or perform unwanted calls. In most modern Android OS, dialer application will require user interaction, however, some older Android OS may not need user interaction.