Buffer overflow in (1) Call of Duty 1.5b and earlier, (2) Call of Duty United Offensive 1.51b and earlier, and (3) Call of Duty 2 1.3 and earlier allows remote attackers to execute arbitrary code via a long map argument to the "callvote map" command.

Quake 3 engine, as used in multiple games, allows remote attackers to cause a denial of service (client disconnect) via a long message, which is not properly truncated and causes the engine to process the remaining data as if it were network data.

Call of Duty 1.4 and earlier allows remote attackers to cause a denial of service (game end) via a large (1) query or (2) reply packet, which is not properly handled by the buffer overflow protection mechanism. NOTE: this issue might overlap CVE-2005-0430.