diff --git a/2017/16xxx/CVE-2017-16544.json b/2017/16xxx/CVE-2017-16544.json
index f3699d0cc53..ce5f3ef1b01 100644
--- a/2017/16xxx/CVE-2017-16544.json
+++ b/2017/16xxx/CVE-2017-16544.json
@@ -126,6 +126,11 @@
                 "refsource": "FULLDISC",
                 "name": "20200902 SEC Consult SA-20200902-0 :: Multiple Vulnerabilities in Red Lion N-Tron 702-W, Red Lion N-Tron 702M12-W",
                 "url": "http://seclists.org/fulldisclosure/2020/Sep/6"
+            },
+            {
+                "refsource": "FULLDISC",
+                "name": "20210113 SEC Consult SA-20210113-0 :: Multiple vulnerabilities in Pepperl+Fuchs IO-Link Master Series",
+                "url": "http://seclists.org/fulldisclosure/2021/Jan/39"
             }
         ]
     }
diff --git a/2020/28xxx/CVE-2020-28208.json b/2020/28xxx/CVE-2020-28208.json
index 98ade738a41..3fb6037c3aa 100644
--- a/2020/28xxx/CVE-2020-28208.json
+++ b/2020/28xxx/CVE-2020-28208.json
@@ -81,6 +81,11 @@
                 "refsource": "FULLDISC",
                 "name": "20210112 Re: Trovent Security Advisory 2010-01 [updated] / CVE-2020-28208: Rocket.Chat email address enumeration vulnerability",
                 "url": "http://seclists.org/fulldisclosure/2021/Jan/32"
+            },
+            {
+                "refsource": "MLIST",
+                "name": "[oss-security] 20210113 Re: Trovent Security Advisory 2010-01 [updated] / CVE-2020-28208: Rocket.Chat email address enumeration vulnerability",
+                "url": "http://www.openwall.com/lists/oss-security/2021/01/13/1"
             }
         ]
     }
diff --git a/2020/28xxx/CVE-2020-28374.json b/2020/28xxx/CVE-2020-28374.json
index 70c5509f6b3..e939051fe62 100644
--- a/2020/28xxx/CVE-2020-28374.json
+++ b/2020/28xxx/CVE-2020-28374.json
@@ -76,6 +76,11 @@
                 "refsource": "MISC",
                 "name": "https://bugzilla.suse.com/attachment.cgi?id=844938",
                 "url": "https://bugzilla.suse.com/attachment.cgi?id=844938"
+            },
+            {
+                "refsource": "MLIST",
+                "name": "[oss-security] 20210113 Re: CVE-2020-28374: Linux SCSI target (LIO) unrestricted copy offload",
+                "url": "http://www.openwall.com/lists/oss-security/2021/01/13/2"
             }
         ]
     }
diff --git a/2021/23xxx/CVE-2021-23937.json b/2021/23xxx/CVE-2021-23937.json
new file mode 100644
index 00000000000..897dfd8ce21
--- /dev/null
+++ b/2021/23xxx/CVE-2021-23937.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-23937",
+        "ASSIGNER": "cve@mitre.org",
+        "STATE": "RESERVED"
+    },
+    "description": {
+        "description_data": [
+            {
+                "lang": "eng",
+                "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
+            }
+        ]
+    }
+}
\ No newline at end of file