The remote host is missing a critical Safari patch update.
The remote Safari browser is missing a security update to Webkit. Apple Safari is bundled with Apple WebKit. Apple WebKit is affected by three distinct flaws. These flaws are based on the way that Apple WebKit handles specially crafted web sites. While the details of these vulnerabilities are currently unknown, the vendor has acknowledged that all three vulnerabilities could result in a remote attacker executing arbitrary code.
Upgrade to Safari 6.2.3 / 7.1.3 / 8.0.3 or later.