diff --git a/README.md b/README.md
index cc9d3f9..a81886c 100644
--- a/README.md
+++ b/README.md
@@ -5454,6 +5454,10 @@ HTTP Header Injection vulnerabilities occur when user input is insecurely includ
 
 <details>
 <summary>Explain what is Buffer Overflow</summary><br><b>
+
+A buffer overflow (or buffer overrun) occurs when the volume of data exceeds the storage capacity of the memory buffer. As a result, the program attempting to write the data to the buffer overwrites adjacent memory locations.
+
+
 </b></details>
 
 ##### Containers