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Known issue that causes a programmatic call of CoInitializeSecurity to fail ifĪttempting to set Default Authentication Level to RPC_C_IMP_LEVEL_NONE or theĭefault Impersonation Level to RPC_C_AUTHN_LEVEL_NONE.ĬoInitializeSecurity is a COM function that is Microsoft updates (specific numbers below) contain a The performance testing was performed on Windows 7 Pro using the Haswell processor architecture.
#Kepware security patches driver#
Although not exhaustive, Kepware's testing showed no noticeable difference in driver performance after installing the Microsoft patches.ĭifferent hardware platforms can be impacted differently, but Kepware's limited testing revealed no noticeable performance degradation. There were some initial reports of some applications having degraded performance following the installation of the patches.
#Kepware security patches windows 10#
Windows 10 version 1607, Windows Server 2016 The below solution is only necessary if the recommended patches are not installed. Below is a summary of initial patches and updated patches that do not suffer the communications problems.
Since the original publication of this article, Microsoft has released new patches without these problems. These updates can affect communications and Microsoft has released updates to the operating systems of affected devices to
Local access is required to perform this exploit. Running with few permissions to access information those programs do not ownĪnd should not access. The Windows Updates, however, can impact OPCĭA, OPC AE, and OPC HDA communications with KEPServerEX.ĭiscovered vulnerability in processor chips can allow malicious programs
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