CVE:CVE-2018-7559
CNNVD:CNNVD-201806-833
多款OPC产品中存在安全漏洞。远程攻击者可借助特制的UserIdentityTokens利用该漏洞确定服务器的私钥。以下产品受到影响：OPC UA .NET Standard Stack；Sample Code；OPC UA .NET Legacy Stack；Sample Code。
solution:Upgrade opcfoundation ua-.net-legacy to a higher version than 1.03.342,and avoid the version (,1.03.342]; Upgrade opcfoundation ua-.netstandard to a higher version than 1.03.352.10,and avoid the version (,1.03.352.10]