diff --git a/README.md b/README.md
index 0075b9d..4be938c 100644
--- a/README.md
+++ b/README.md
@@ -396,6 +396,8 @@
 
 - [CVE-2021-40539：ManageEngine ADManager Plus 未授权访问RCE](https://github.com/synacktiv/CVE-2021-40539)
 
+- [CVE-2021-42321:微软Exchange Server远程代码执行漏洞(需要省份验证)](https://github.com/DarkSprings/CVE-2021-42321)
+
 ## <span id="head7"> tools-小工具集版本合</span>
 
 - [java环境下任意文件下载情况自动化读取源码的小工具](https://github.com/Artemis1029/Java_xmlhack)