diff --git a/2020/1xxx/CVE-2020-1416.json b/2020/1xxx/CVE-2020-1416.json
index abafb16f35a..d975a480562 100644
--- a/2020/1xxx/CVE-2020-1416.json
+++ b/2020/1xxx/CVE-2020-1416.json
@@ -116,11 +116,6 @@
                 "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1416",
                 "refsource": "MISC",
                 "name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1416"
-            },
-            {
-                "refsource": "CISCO",
-                "name": "20210217 Cisco Identity Services Engine Sensitive Information Disclosure Vulnerabilities",
-                "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-info-exp-8RsuEu8S"
             }
         ]
     }
diff --git a/2021/3xxx/CVE-2021-3843.json b/2021/3xxx/CVE-2021-3843.json
new file mode 100644
index 00000000000..99e6be88494
--- /dev/null
+++ b/2021/3xxx/CVE-2021-3843.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-3843",
+        "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