Symantec Scan Engine 5.0.0.24, and possibly other versions before 5.1.0.7, uses the same private DSA key for each installation, which allows remote attackers to conduct man-in-the-middle attacks and decrypt communications.

Symantec Scan Engine 5.0.0.24, and possibly other versions before 5.1.0.7, uses a client-side check to verify a password, which allows remote attackers to gain administrator privileges via a modified client that sends certain XML requests.

avast! 4 Linux Home Edition 1.0.5 allows local users to modify permissions of arbitrary files via a symlink attack on the /tmp/_avast4_ temporary directory.

Untrusted search path vulnerability in unspecified components in Symantec LiveUpdate for Macintosh 3.0.0 through 3.5.0 do not set the execution path, which allows local users to gain privileges via a Trojan horse program.

The GUI (nod32.exe) in NOD32 2.5 runs with SYSTEM privileges when the scheduler runs a scheduled on-demand scan, which allows local users to execute arbitrary code during a scheduled scan via unspecified attack vectors.

The "restore to" selection in the "quarantine a file" capability of ESET NOD32 before 2.51.26 allows a restore to any directory that permits read access by the invoking user, which allows local users to create new files despite write-access directory permissions.

avast! Antivirus 4.6.763 and earlier sets "BUILTIN\Everyone" permissions to critical system files in the installation folder, which allows local users to gain privileges or disable protection by modifying those files.

Grisoft AVG Free 7.1, and other versions including 7.0.308, sets Everyone/Full Control permissions for certain update files including (1) upd_vers.cfg, (2) incavi.avm, and (3) unspecified drivers, which might allow local users to gain privileges.

The VisNetic AntiVirus Plug-in (DKAVUpSch.exe) for Mail Server 4.6.0.4, 4.6.1.1, and possibly other versions before 4.6.1.2, does not drop privileges before executing other programs, which allows local users to gain privileges.

Heap-based buffer overflow in pskcmp.dll in Panda Software Antivirus library allows remote attackers to execute arbitrary code via a crafted ZOO archive.