diff --git a/2021/24xxx/CVE-2021-24020.json b/2021/24xxx/CVE-2021-24020.json
index 5e7d0cb22f5..a73df52b7f2 100644
--- a/2021/24xxx/CVE-2021-24020.json
+++ b/2021/24xxx/CVE-2021-24020.json
@@ -4,14 +4,74 @@
     "data_version": "4.0",
     "CVE_data_meta": {
         "ID": "CVE-2021-24020",
-        "ASSIGNER": "cve@mitre.org",
-        "STATE": "RESERVED"
+        "ASSIGNER": "psirt@fortinet.com",
+        "STATE": "PUBLIC"
+    },
+    "affects": {
+        "vendor": {
+            "vendor_data": [
+                {
+                    "vendor_name": "Fortinet",
+                    "product": {
+                        "product_data": [
+                            {
+                                "product_name": "Fortinet FortiMail",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_value": "FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7"
+                                        }
+                                    ]
+                                }
+                            }
+                        ]
+                    }
+                }
+            ]
+        }
+    },
+    "impact": {
+        "cvss": {
+            "attackComplexity": "High",
+            "attackVector": "Network",
+            "availabilityImpact": "High",
+            "baseScore": 6.9,
+            "baseSeverity": "Medium",
+            "confidentialityImpact": "High",
+            "integrityImpact": "High",
+            "privilegesRequired": "Low",
+            "scope": "Unchanged",
+            "userInteraction": "None",
+            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
+            "version": "3.1"
+        }
+    },
+    "problemtype": {
+        "problemtype_data": [
+            {
+                "description": [
+                    {
+                        "lang": "eng",
+                        "value": "Improper Access Control"
+                    }
+                ]
+            }
+        ]
+    },
+    "references": {
+        "reference_data": [
+            {
+                "refsource": "CONFIRM",
+                "name": "https://fortiguard.com/advisory/FG-IR-21-027",
+                "url": "https://fortiguard.com/advisory/FG-IR-21-027"
+            }
+        ]
     },
     "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."
+                "value": "A missing cryptographic step in the implementation of the hash digest algorithm in FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to tamper with signed URLs by appending further data which allows\u00a0bypass of signature\u00a0verification."
             }
         ]
     }