A security researcher has disclosed exploit code for a fourth zero-day vulnerability in Windows operating system in just as many months. The bug enables overwriting a target file with arbitrary data.

Antivirus vendors are warning of a rapidly-spreading worm that is carrying a potentially destructive set of instructions. The Nyxem worm — also nicknamed the Kama Sutra worm — is programmed to ...

Cisco has patched a remote file-overwrite vulnerability in a couple of its products that could allow an attacker to replace arbitrary files and cause target systems to become unstable. Cisco has ...