diff --git a/2018/18xxx/CVE-2018-18650.json b/2018/18xxx/CVE-2018-18650.json
new file mode 100644
index 00000000000..9345084245c
--- /dev/null
+++ b/2018/18xxx/CVE-2018-18650.json
@@ -0,0 +1,62 @@
+{
+   "CVE_data_meta" : {
+      "ASSIGNER" : "cve@mitre.org",
+      "ID" : "CVE-2018-18650",
+      "STATE" : "PUBLIC"
+   },
+   "affects" : {
+      "vendor" : {
+         "vendor_data" : [
+            {
+               "product" : {
+                  "product_data" : [
+                     {
+                        "product_name" : "n/a",
+                        "version" : {
+                           "version_data" : [
+                              {
+                                 "version_value" : "n/a"
+                              }
+                           ]
+                        }
+                     }
+                  ]
+               },
+               "vendor_name" : "n/a"
+            }
+         ]
+      }
+   },
+   "data_format" : "MITRE",
+   "data_type" : "CVE",
+   "data_version" : "4.0",
+   "description" : {
+      "description_data" : [
+         {
+            "lang" : "eng",
+            "value" : "An issue was discovered in Xpdf 4.00. XRef::readXRefStream in XRef.cc allows attackers to launch a denial of service (Integer Overflow) via a crafted /Size value in a pdf file, as demonstrated by pdftohtml. This is mainly caused by the program attempting a malloc operation for a large amount of memory."
+         }
+      ]
+   },
+   "problemtype" : {
+      "problemtype_data" : [
+         {
+            "description" : [
+               {
+                  "lang" : "eng",
+                  "value" : "n/a"
+               }
+            ]
+         }
+      ]
+   },
+   "references" : {
+      "reference_data" : [
+         {
+            "name" : "https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747",
+            "refsource" : "MISC",
+            "url" : "https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747"
+         }
+      ]
+   }
+}
diff --git a/2018/18xxx/CVE-2018-18651.json b/2018/18xxx/CVE-2018-18651.json
new file mode 100644
index 00000000000..13b49a4b16a
--- /dev/null
+++ b/2018/18xxx/CVE-2018-18651.json
@@ -0,0 +1,62 @@
+{
+   "CVE_data_meta" : {
+      "ASSIGNER" : "cve@mitre.org",
+      "ID" : "CVE-2018-18651",
+      "STATE" : "PUBLIC"
+   },
+   "affects" : {
+      "vendor" : {
+         "vendor_data" : [
+            {
+               "product" : {
+                  "product_data" : [
+                     {
+                        "product_name" : "n/a",
+                        "version" : {
+                           "version_data" : [
+                              {
+                                 "version_value" : "n/a"
+                              }
+                           ]
+                        }
+                     }
+                  ]
+               },
+               "vendor_name" : "n/a"
+            }
+         ]
+      }
+   },
+   "data_format" : "MITRE",
+   "data_type" : "CVE",
+   "data_version" : "4.0",
+   "description" : {
+      "description_data" : [
+         {
+            "lang" : "eng",
+            "value" : "An issue was discovered in Xpdf 4.00. catalog->getNumPages() in AcroForm.cc allows attackers to launch a denial of service (hang caused by large loop) via a specific pdf file, as demonstrated by pdftohtml. This is mainly caused by a large number after the /Count field in the file."
+         }
+      ]
+   },
+   "problemtype" : {
+      "problemtype_data" : [
+         {
+            "description" : [
+               {
+                  "lang" : "eng",
+                  "value" : "n/a"
+               }
+            ]
+         }
+      ]
+   },
+   "references" : {
+      "reference_data" : [
+         {
+            "name" : "https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747",
+            "refsource" : "MISC",
+            "url" : "https://forum.xpdfreader.com/viewtopic.php?f=3&t=41219&p=41747#p41747"
+         }
+      ]
+   }
+}