Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with a large timer value, which causes the host to discard later packets because they appear to be too old.

Multiple cross-site scripting (XSS) vulnerabilities in Merak Mail Server 8.0.3 with Icewarp Web Mail 5.4.2 allow remote authenticated users to inject arbitrary web script or HTML via (1) the E-mail address, Note, or Public Certificate fields to address.html, (2) addressaction.html, (3) the Signature field to settings.html, or (4) the Shared calendars to calendarsettings.html.

Unknown vulnerability in Merak Mail Server 8.0.3 with Icewarp Web Mail 5.4.2 allows remote authenticated users to obtain the full path of the server via certain requests to (1) calendar_addevent.html, (2) calendar_event.html, or (3) calendar_task.html.

Merak Mail Server 8.0.3 with Icewarp Web Mail 5.4.2, when the mailbox.dat file does not exist, allows remote authenticated users to determine if a file exists via the folder parameter to attachment.html.

Merak Mail Server 8.0.3 with Icewarp Web Mail 5.4.2 allows remote authenticated users to (1) move their home directory via viewaction.html or (2) move arbitrary files via the importfile parameter to importaction.html.

MERAK Mail Server 7.6.0 with Icewarp Web Mail 5.3.0 allows remote authenticated users to gain sensitive information via an HTTP request to (1) calendar_d.html, (2) calendar_m.html, (3) calendar_w.html, or (4) calendar_y.html, which reveal the installation path.

Multiple Symantec AntiVirus products, including Norton AntiVirus 2005 11.0.0, Web Security Web Security 3.0.1.72, Mail Security for SMTP 4.0.5.66, AntiVirus Scan Engine 4.3.7.27, SAV/Filter for Domino NT 3.1.1.87, and Mail Security for Exchange 4.5.4.743, when running on Windows, allows remote attackers to cause a denial of service (component crash) and avoid detection via a crafted RAR file.

MERAK Mail Server 7.6.0 with Icewarp Web Mail 5.3.0 and Mail Server 7.6.4r with Icewarp Mail Server 5.3.2 uses weak encryption in the (1) users.cfg, (2) settings.cfg, (3) users.dat or (4) user.dat files, which allows local users to extract the passwords.

Heap-based buffer overflow in the DEC2EXE module for Symantec AntiVirus Library allows remote attackers to execute arbitrary code via a UPX compressed file containing a negative virtual offset to a crafted PE header.

Multiple cross-site scripting vulnerabilities in MERAK Mail Server 7.6.0 with Icewarp Web Mail 5.3.0 allow remote attackers to inject arbitrary web script or HTML via the (1) username parameter to login.html, (2) accountid parameter to accountsettings_add.html, or the (3) note, (4) title, and (5) location fields to calendar.html.