diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -334,6 +334,8 @@
 
 - [VMware vCenter Server RCE_SSRF[CVE-2021-21972_3]](./books/VMware%20vCenter%20Server%20RCE_SSRF%5BCVE-2021-21972_3%5D.pdf)-[原文地址](https://mp.weixin.qq.com/s/NoqpuklgwNOalJgAuFnlcA)
 
+- [CVE-2021-1732 Windows 本地权限提升漏洞](https://github.com/jessica0f0116/cve_2021_1732)
+
 ## <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)
diff --git a/books/pwn/第四届红帽杯网络安全大赛-线上赛Writeup.pdf b/books/pwn/第四届红帽杯网络安全大赛-线上赛Writeup.pdf
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diff --git a/靶场系列.md b/靶场系列.md
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@@ -0,0 +1,4 @@
+> 收集一些常见的在线免费靶场，不用每次都去找，持续更新
+
+- http://www.bmzclub.cn/ 
+- 
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