Apple has released Safari v3.1.2 for Windows to address multiple vulnerabilities. These vulnerabilities include the following:

• an out-of-bounds memory read when handling BMP and GIF files that may lead to the disclosure of memory contents
• an issue in the way Windows desktop handles executables, which may allow arbitrary code execution
• an issue in the way Safari handles executables from websites in a trusted Internet Explorer zone, which may lead to automatic arbitrary code execution
• a memory corruption issue in the handling of JavaScript arrays by WebKit that may lead to an unexpected application termination or arbitrary code execution

Read more: US-CERT Current Activity