diff --git a/2021/21xxx/CVE-2021-21729.json b/2021/21xxx/CVE-2021-21729.json
index 10ea04a1733..47ed8856fbe 100644
--- a/2021/21xxx/CVE-2021-21729.json
+++ b/2021/21xxx/CVE-2021-21729.json
@@ -4,14 +4,61 @@
     "data_version": "4.0",
     "CVE_data_meta": {
         "ID": "CVE-2021-21729",
-        "ASSIGNER": "cve@mitre.org",
-        "STATE": "RESERVED"
+        "ASSIGNER": "psirt@zte.com.cn",
+        "STATE": "PUBLIC"
+    },
+    "affects": {
+        "vendor": {
+            "vendor_data": [
+                {
+                    "vendor_name": "n/a",
+                    "product": {
+                        "product_data": [
+                            {
+                                "product_name": "ZXHN H168N,ZXHN H108N",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_value": "V3.5.0_EG1T5_TE"
+                                        },
+                                        {
+                                            "version_value": "V2.5.5_BTMT1"
+                                        }
+                                    ]
+                                }
+                            }
+                        ]
+                    }
+                }
+            ]
+        }
+    },
+    "problemtype": {
+        "problemtype_data": [
+            {
+                "description": [
+                    {
+                        "lang": "eng",
+                        "value": "CSRF"
+                    }
+                ]
+            }
+        ]
+    },
+    "references": {
+        "reference_data": [
+            {
+                "refsource": "MISC",
+                "name": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014904",
+                "url": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014904"
+            }
+        ]
     },
     "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": "Some ZTE products have CSRF vulnerability. Because some pages lack CSRF random value verification, attackers could perform illegal authorization operations by constructing messages.This affects: ZXHN H168N V3.5.0_EG1T5_TE, V2.5.5, ZXHN H108N V2.5.5_BTMT1"
             }
         ]
     }
diff --git a/2021/21xxx/CVE-2021-21730.json b/2021/21xxx/CVE-2021-21730.json
index 9f87fd01672..b5f48e3e9c0 100644
--- a/2021/21xxx/CVE-2021-21730.json
+++ b/2021/21xxx/CVE-2021-21730.json
@@ -4,14 +4,58 @@
     "data_version": "4.0",
     "CVE_data_meta": {
         "ID": "CVE-2021-21730",
-        "ASSIGNER": "cve@mitre.org",
-        "STATE": "RESERVED"
+        "ASSIGNER": "psirt@zte.com.cn",
+        "STATE": "PUBLIC"
+    },
+    "affects": {
+        "vendor": {
+            "vendor_data": [
+                {
+                    "vendor_name": "n/a",
+                    "product": {
+                        "product_data": [
+                            {
+                                "product_name": "ZXHN H168N",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_value": "V3.5.0_TY.T6"
+                                        }
+                                    ]
+                                }
+                            }
+                        ]
+                    }
+                }
+            ]
+        }
+    },
+    "problemtype": {
+        "problemtype_data": [
+            {
+                "description": [
+                    {
+                        "lang": "eng",
+                        "value": "Improper Access Control"
+                    }
+                ]
+            }
+        ]
+    },
+    "references": {
+        "reference_data": [
+            {
+                "refsource": "MISC",
+                "name": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014864",
+                "url": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014864"
+            }
+        ]
     },
     "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 ZTE product is impacted by improper access control vulnerability. The attacker could exploit this vulnerability to access CLI by brute force attacks.This affects: ZXHN H168N V3.5.0_TY.T6"
             }
         ]
     }
diff --git a/2021/21xxx/CVE-2021-21731.json b/2021/21xxx/CVE-2021-21731.json
index 7f0f78c4603..4d03aefa213 100644
--- a/2021/21xxx/CVE-2021-21731.json
+++ b/2021/21xxx/CVE-2021-21731.json
@@ -4,14 +4,58 @@
     "data_version": "4.0",
     "CVE_data_meta": {
         "ID": "CVE-2021-21731",
-        "ASSIGNER": "cve@mitre.org",
-        "STATE": "RESERVED"
+        "ASSIGNER": "psirt@zte.com.cn",
+        "STATE": "PUBLIC"
+    },
+    "affects": {
+        "vendor": {
+            "vendor_data": [
+                {
+                    "vendor_name": "n/a",
+                    "product": {
+                        "product_data": [
+                            {
+                                "product_name": "ZXCLOUD iRAI",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_value": "All versions up to KVM-ProductV6.03.04"
+                                        }
+                                    ]
+                                }
+                            }
+                        ]
+                    }
+                }
+            ]
+        }
+    },
+    "problemtype": {
+        "problemtype_data": [
+            {
+                "description": [
+                    {
+                        "lang": "eng",
+                        "value": "CSRF"
+                    }
+                ]
+            }
+        ]
+    },
+    "references": {
+        "reference_data": [
+            {
+                "refsource": "MISC",
+                "name": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014824",
+                "url": "https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014824"
+            }
+        ]
     },
     "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 CSRF vulnerability exists in the management page of a ZTE product.The vulnerability is caused because the management page does not fully verify whether the request comes from a trusted user. The attacker could submit a malicious request to the affected device to delete the data. This affects: ZXCLOUD iRAI All versions up to KVM-ProductV6.03.04"
             }
         ]
     }
diff --git a/2021/30xxx/CVE-2021-30639.json b/2021/30xxx/CVE-2021-30639.json
new file mode 100644
index 00000000000..8e01c7e5e6a
--- /dev/null
+++ b/2021/30xxx/CVE-2021-30639.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-30639",
+        "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
diff --git a/2021/30xxx/CVE-2021-30640.json b/2021/30xxx/CVE-2021-30640.json
new file mode 100644
index 00000000000..92b03dec335
--- /dev/null
+++ b/2021/30xxx/CVE-2021-30640.json
@@ -0,0 +1,18 @@
+{
+    "data_type": "CVE",
+    "data_format": "MITRE",
+    "data_version": "4.0",
+    "CVE_data_meta": {
+        "ID": "CVE-2021-30640",
+        "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