INCIDENT EVIDENCE GRAPHCVE-2026-50522:Microsoft SharePoint 不受信任数据反序列化漏洞2026-07-21T20:06:55Z受害方: Microsoft SharePoint攻击者: Threat actors漏洞 / 利用: CVE-2026-50522攻击手法: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability原始证据过去一月攻击潮中第四个被利用的SharePoint漏洞CVE-2026-50522:Microsoft SharePoint 不受信任数据反序列化漏洞SharePoint关键远程代码执行漏洞被利用窃取机器密钥English