This months patch Tuesday brings a set of three critical bulletins focused on Windows/web browser component vulnerabilities and six other bulletins rated important In other words, two of the critical components are considered Windows components, but most likely would be attacked through the web browser. The top priority bulletin patches the CVE-2012-1889 vulnerability being exploited not only by attackers targeting high value targets, but common-off-the-shelf/commodity exploit packs.”]
Source: https://securelist.com/patch-tuesday-july-2012-focus-on-the-browser-13/33419/