Apple fixes critical Airport security holes
Apple recently fixed 4 critical security holes, 3 of them in their own Airport drivers. Various Mac’s were vurnerable to arbitrary code execution by buffer overflows in the Airport drivers and the Airport API used by third-party WiFi software.
Apple: About the security content of AirPort Update 2006-001 and Security Update 2006-005
Heise security: Three critical holes in Apple’s Airport driver