diff --git "a/dll/win32/riched20/editor.c" "b/dll/win32/riched20/editor.c"
index a7794ab7901..e744da0f938 100644
--- "a/dll/win32/riched20/editor.c"
+++ "b/dll/win32/riched20/editor.c"
@@ -4362,7 +4362,17 @@ int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int buflen,
     *buffer = '\r';
     buffer ++;
   }
+
+#ifdef __REACTOS__
+  /* Do not write past the end of the buffer */
+  if ((INT_PTR)buffer < (INT_PTR)pStart + nLen * sizeof(WCHAR) + sizeof(WCHAR))
+  {
+    *buffer = 0;
+  }
+#else
   *buffer = 0;
+#endif
+
   return buffer - pStart;
 }