Cryptographic API Component Object Model (CAPICOM) Updates - My Computer Diary

Security Update for CAPICOM (KB931906)

Installation date: ‎8/‎28/‎2011 3:01 AM

Installation status: Successful

Update type: Important

Description: A remote code execution vulnerability exists in Cryptographic API Component Object Model (CAPICOM) that allows an attacker who successfully exploits this vulnerability to take complete control of an affected system. CAPICOM can be used as a component of a 3rd party webpage, script or application. You can protect your computer by installing this update from Microsoft.

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CAPICOM is a discontinued ActiveX control created by Microsoft to help expose a select set of Microsoft Cryptographic Application Programming Interface (CryptoAPI) functions through Microsoft Component Object Model (COM). It was intended to enable every environment that supports ActiveX to use Microsoft Cryptographic technologies, including web pages that are opened with Microsoft Internet Explorer or any other web browser that supports ActiveX.[1]

CAPICOM can be used to digitally sign data, inspect, verify and display their digital signature and/or digital certificate, add or remove certificates to or from the certificate stores, and finally, to encrypt or decrypt data.[1]

CAPICOM Version, the latest and last version of CAPICOM, is officially supported on Windows Vista.[2][3] However, Microsoft has announced that CAPICOM is discontinued and is no longer being developed. Microsoft suggests replacing CAPICOM with .NET Framework's X509 Cryptographic Classes and a number of other alternatives.[4]

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