diff --git a/Misc/NEWS b/Misc/NEWS
index fe9be71..1e352bc 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -31,6 +31,9 @@
 Library
 -------
 
+- Issue #9129: smtpd.py is vulnerable to DoS attacks deriving from missing 
+  error handling when accepting a new connection.
+
 - Issue #658749: asyncore's connect() method now correctly interprets winsock
   errors.