diff --git a/2021/1xxx/CVE-2021-1791.json b/2021/1xxx/CVE-2021-1791.json
index c2ae610f63a..c7f829b917a 100644
--- a/2021/1xxx/CVE-2021-1791.json
+++ b/2021/1xxx/CVE-2021-1791.json
@@ -4,14 +4,107 @@
     "data_version": "4.0",
     "CVE_data_meta": {
         "ID": "CVE-2021-1791",
-        "ASSIGNER": "cve@mitre.org",
-        "STATE": "RESERVED"
+        "ASSIGNER": "product-security@apple.com",
+        "STATE": "PUBLIC"
+    },
+    "affects": {
+        "vendor": {
+            "vendor_data": [
+                {
+                    "vendor_name": "Apple",
+                    "product": {
+                        "product_data": [
+                            {
+                                "product_name": "iOS and iPadOS",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_affected": "<",
+                                            "version_value": "14.4"
+                                        }
+                                    ]
+                                }
+                            },
+                            {
+                                "product_name": "macOS",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_affected": "<",
+                                            "version_value": "11.2"
+                                        }
+                                    ]
+                                }
+                            },
+                            {
+                                "product_name": "macOS",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_affected": "<",
+                                            "version_value": "7.3"
+                                        }
+                                    ]
+                                }
+                            },
+                            {
+                                "product_name": "macOS",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_affected": "<",
+                                            "version_value": "14.4"
+                                        }
+                                    ]
+                                }
+                            }
+                        ]
+                    }
+                }
+            ]
+        }
+    },
+    "problemtype": {
+        "problemtype_data": [
+            {
+                "description": [
+                    {
+                        "lang": "eng",
+                        "value": "A malicious application may be able to disclose kernel memory"
+                    }
+                ]
+            }
+        ]
+    },
+    "references": {
+        "reference_data": [
+            {
+                "refsource": "MISC",
+                "url": "https://support.apple.com/en-us/HT212147",
+                "name": "https://support.apple.com/en-us/HT212147"
+            },
+            {
+                "refsource": "MISC",
+                "url": "https://support.apple.com/en-us/HT212146",
+                "name": "https://support.apple.com/en-us/HT212146"
+            },
+            {
+                "refsource": "MISC",
+                "url": "https://support.apple.com/en-us/HT212148",
+                "name": "https://support.apple.com/en-us/HT212148"
+            },
+            {
+                "refsource": "MISC",
+                "url": "https://support.apple.com/en-us/HT212149",
+                "name": "https://support.apple.com/en-us/HT212149"
+            }
+        ]
     },
     "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": "An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to disclose kernel memory."
             }
         ]
     }