Fourteen critical vulnerabilities in Internet Explorer were among the targets of Microsoft’s monthly batch of security patches released Tuesday. In all, it fixed 46 vulnerabilities across products including Windows, Internet Explorer and Office.
The patches were organized in 13 security bulletins, three flagged as critical and ten as important. The critical bulletins, MS15-043, MS15-044 and MS15-045, cover remote code execution vulnerabilities in Windows, IE, Office, Microsoft .NET Framework, Microsoft Lync and Silverlight.
The priority for administrators should be MS15-043, which fixes 22 vulnerabilities in Internet Explorer, of which 14 are rated critical, said Wolfgang Kandek, the CTO of security firm Qualys, via email. Critical vulnerabilities in IE allow attackers to execute arbitrary code on machines when their users visit malicious Web pages, and attackers have a variety of techniques in their arsenal to achieve this, he said.
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