Microsoft is to release nine security bulletins next week as part of its monthly Patch Tuesday security updates, aimed mainly at critical vulnerabilities in Internet Explorer and Windows 7. There is also an out-of-cycle update for Java from Oracle this month. In addition to the Microsoft updates, security administrators should note that the PostGreSQL Open Source project has published a new version of its database product that addresses five security flaws. One of them – CVE-2013-1899 – allows the attacker to delete database files without authentication, leading to data loss and denial of service.