diff --git a/.github/workflows/validate_schema.yml b/.github/workflows/validate_schema.yml
index ece0ad22bca..3c7642a274d 100644
--- a/.github/workflows/validate_schema.yml
+++ b/.github/workflows/validate_schema.yml
@@ -19,5 +19,5 @@ jobs:
       - name: Install dependencies
         run: npm install -g ajv-cli && npm install -g ajv-formats
       - name: Run json schema validation via ajv
-        run: bash _scripts/validate_schema-v2.2.0.bash
+        run: bash _scripts/validate_schema-v2.2.3.bash
         shell: bash
diff --git a/_scripts/contrib/schema/cve_item-v2.2.3.schema.json b/_scripts/contrib/schema/cve_item-v2.2.3.schema.json
new file mode 100644
index 00000000000..9c790a22887
--- /dev/null
+++ b/_scripts/contrib/schema/cve_item-v2.2.3.schema.json
@@ -0,0 +1,445 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "Modified JSON Schema for cve_items returned by the NVD Vulnerability Data API version 2.2.3",
+  "definitions": {
+    "cvss-v2": {
+      "properties": {
+        "source": {
+          "type": "string"
+        },
+        "type": {
+          "enum": [
+            "Primary",
+            "Secondary"
+          ]
+        },
+        "cvssData": {
+          "$ref": "cvss-v2.0.schema.json"
+        },
+        "baseSeverity": {
+          "type": "string"
+        },
+        "exploitabilityScore": {
+          "$ref": "#/definitions/def_subscore"
+        },
+        "impactScore": {
+          "$ref": "#/definitions/def_subscore"
+        },
+        "acInsufInfo": {
+          "type": "boolean"
+        },
+        "obtainAllPrivilege": {
+          "type": "boolean"
+        },
+        "obtainUserPrivilege": {
+          "type": "boolean"
+        },
+        "obtainOtherPrivilege": {
+          "type": "boolean"
+        },
+        "userInteractionRequired": {
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "source",
+        "type",
+        "cvssData"
+      ],
+      "additionalProperties": false
+    },
+    "cvss-v30": {
+      "properties": {
+        "source": {
+          "type": "string"
+        },
+        "type": {
+          "enum": [
+            "Primary",
+            "Secondary"
+          ]
+        },
+        "cvssData": {
+          "$ref": "cvss-v3.0.schema.json"
+        },
+        "exploitabilityScore": {
+          "$ref": "#/definitions/def_subscore"
+        },
+        "impactScore": {
+          "$ref": "#/definitions/def_subscore"
+        }
+      },
+      "required": [
+        "source",
+        "type",
+        "cvssData"
+      ],
+      "additionalProperties": false
+    },
+    "cvss-v31": {
+      "properties": {
+        "source": {
+          "type": "string"
+        },
+        "type": {
+          "enum": [
+            "Primary",
+            "Secondary"
+          ]
+        },
+        "cvssData": {
+          "$ref": "cvss-v3.1.schema.json"
+        },
+        "exploitabilityScore": {
+          "$ref": "#/definitions/def_subscore"
+        },
+        "impactScore": {
+          "$ref": "#/definitions/def_subscore"
+        }
+      },
+      "required": [
+        "source",
+        "type",
+        "cvssData"
+      ],
+      "additionalProperties": false
+    },
+    "cvss-v40": {
+      "properties": {
+        "source": {
+          "type": "string"
+        },
+        "type": {
+          "enum": [
+            "Primary",
+            "Secondary"
+          ]
+        },
+        "cvssData": {
+          "$ref": "cvss-v4.0.schema.json"
+        }
+      },
+      "required": [
+        "source",
+        "type",
+        "cvssData"
+      ],
+      "additionalProperties": false
+    },
+    "cve_id": {
+      "type": "string",
+      "pattern": "^CVE-[0-9]{4}-[0-9]{4,}$"
+    },
+    "lang_string": {
+      "type": "object",
+      "properties": {
+        "lang": {
+          "type": "string"
+        },
+        "value": {
+          "type": "string",
+          "maxLength": 4096
+        }
+      },
+      "required": [
+        "lang",
+        "value"
+      ],
+      "additionalProperties": false
+    },
+    "reference": {
+      "type": "object",
+      "properties": {
+        "url": {
+          "type": "string",
+          "format": "uri",
+          "minLength": 1,
+          "maxLength": 2048
+        },
+        "source": {
+          "type": "string"
+        },
+        "tags": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        }
+      },
+      "required": [
+        "url"
+      ]
+    },
+    "vendorComment": {
+      "type": "object",
+      "properties": {
+        "organization": {
+          "type": "string"
+        },
+        "comment": {
+          "type": "string"
+        },
+        "lastModified": {
+          "type": "string",
+          "format": "iso-date-time"
+        }
+      },
+      "required": [
+        "organization",
+        "comment",
+        "lastModified"
+      ],
+      "additionalProperties": false
+    },
+    "weakness": {
+      "properties": {
+        "source": {
+          "type": "string"
+        },
+        "type": {
+          "type": "string"
+        },
+        "description": {
+          "type": "array",
+          "minItems": 0,
+          "items": {
+            "$ref": "#/definitions/lang_string"
+          }
+        }
+      },
+      "required": [
+        "source",
+        "type",
+        "description"
+      ],
+      "additionalProperties": false
+    },
+    "config": {
+      "properties": {
+        "operator": {
+          "type": "string",
+          "enum": [
+            "AND",
+            "OR"
+          ]
+        },
+        "negate": {
+          "type": "boolean"
+        },
+        "nodes": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/node"
+          }
+        }
+      },
+      "required": [
+        "nodes"
+      ]
+    },
+    "node": {
+      "description": "Defines a configuration node in an NVD applicability statement.",
+      "properties": {
+        "operator": {
+          "type": "string",
+          "enum": [
+            "AND",
+            "OR"
+          ]
+        },
+        "negate": {
+          "type": "boolean"
+        },
+        "cpeMatch": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/cpe_match"
+          }
+        }
+      },
+      "required": [
+        "operator",
+        "cpeMatch"
+      ]
+    },
+    "cpe_match": {
+      "description": "CPE match string or range",
+      "type": "object",
+      "properties": {
+        "vulnerable": {
+          "type": "boolean"
+        },
+        "criteria": {
+          "type": "string"
+        },
+        "matchCriteriaId": {
+          "type": "string",
+          "format": "uuid"
+        },
+        "versionStartExcluding": {
+          "type": "string"
+        },
+        "versionStartIncluding": {
+          "type": "string"
+        },
+        "versionEndExcluding": {
+          "type": "string"
+        },
+        "versionEndIncluding": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "vulnerable",
+        "criteria",
+        "matchCriteriaId"
+      ]
+    },
+    "def_subscore": {
+      "description": "CVSS subscore.",
+      "type": "number",
+      "minimum": 0,
+      "maximum": 10
+    }
+  },
+  "type": "object",
+  "properties": {
+    "id": {
+      "$ref": "#/definitions/cve_id"
+    },
+    "sourceIdentifier": {
+      "type": "string"
+    },
+    "vulnStatus": {
+      "type": "string"
+    },
+    "published": {
+      "type": "string",
+      "format": "iso-date-time"
+    },
+    "lastModified": {
+      "type": "string",
+      "format": "iso-date-time"
+    },
+    "evaluatorComment": {
+      "type": "string"
+    },
+    "evaluatorSolution": {
+      "type": "string"
+    },
+    "evaluatorImpact": {
+      "type": "string"
+    },
+    "cisaExploitAdd": {
+      "type": "string",
+      "format": "date"
+    },
+    "cisaActionDue": {
+      "type": "string",
+      "format": "date"
+    },
+    "cisaRequiredAction": {
+      "type": "string"
+    },
+    "cisaVulnerabilityName": {
+      "type": "string"
+    },
+    "cveTags": {
+      "type": "array",
+      "items": [
+        {
+          "type": "object",
+          "properties": {
+            "sourceIdentifier": {
+              "description": "The email address or UUID of the source that contributed the information",
+              "type": "string"
+            },
+            "tags": {
+              "type": "array",
+              "items": {
+                "type": "string",
+                "enum": [
+                  "unsupported-when-assigned",
+                  "exclusively-hosted-service",
+                  "disputed"
+                ]
+              }
+            }
+          }
+        }
+      ]
+    },
+    "descriptions": {
+      "type": "array",
+      "minItems": 1,
+      "items": {
+        "$ref": "#/definitions/lang_string"
+      }
+    },
+    "references": {
+      "type": "array",
+      "items": {
+        "$ref": "#/definitions/reference"
+      }
+    },
+    "metrics": {
+      "description": "Metric scores for a vulnerability as found on NVD.",
+      "type": "object",
+      "properties": {
+        "cvssMetricV40": {
+          "description": "CVSS V4.0 score.",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/cvss-v40"
+          }
+        },
+        "cvssMetricV31": {
+          "description": "CVSS V3.1 score.",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/cvss-v31"
+          }
+        },
+        "cvssMetricV30": {
+          "description": "CVSS V3.0 score.",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/cvss-v30"
+          }
+        },
+        "cvssMetricV2": {
+          "description": "CVSS V2.0 score.",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/cvss-v2"
+          }
+        }
+      }
+    },
+    "weaknesses": {
+      "type": "array",
+      "items": {
+        "$ref": "#/definitions/weakness"
+      }
+    },
+    "configurations": {
+      "type": "array",
+      "items": {
+        "$ref": "#/definitions/config"
+      }
+    },
+    "vendorComments": {
+      "type": "array",
+      "items": {
+        "$ref": "#/definitions/vendorComment"
+      }
+    }
+  },
+  "required": [
+    "id",
+    "published",
+    "lastModified",
+    "references",
+    "descriptions"
+  ]
+}
diff --git a/_scripts/validate_schema-v2.2.3.bash b/_scripts/validate_schema-v2.2.3.bash
new file mode 100755
index 00000000000..1c2d8455691
--- /dev/null
+++ b/_scripts/validate_schema-v2.2.3.bash
@@ -0,0 +1,49 @@
+#!/bin/bash
+
+script_parent=$( (cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P) || exit 1 )
+schema_path="$script_parent/contrib/schema"
+cve_path="$script_parent/../"
+
+
+print_dependency_error_and_exit() {
+  echo "[error] $1 not installed."
+  echo "this script uses ajv to validate the json files in this repository."
+  echo "please ensure that npm and the required packages are installed."
+  echo "  - npm install -g ajv-cli"
+  echo "  - npm install -g ajv-formats"
+  echo "[note] the above commands install the ajv packages globally."
+  exit 2
+}
+  
+
+if ! command -v npm &> /dev/null; then
+  print_dependency_error_and_exit "npm"
+fi
+
+npm list -g ajv &> /dev/null
+status=$?
+if [ $status -ne 0 ]; then
+  print_dependency_error_and_exit "ajv-cli"
+fi
+
+npm list -g ajv-formats &> /dev/null
+status=$?
+if [ $status -ne 0 ]; then
+  print_dependency_error_and_exit "ajv-formats"
+fi
+
+set -euxo pipefail
+
+ajv validate -s "$schema_path/cve_item-v2.2.3.schema.json" \
+  -d "$cve_path/CVE-*/**/*.json" \
+  --strict=false \
+  -r "$schema_path/cvss-v4.0.schema.json" \
+  -r "$schema_path/cvss-v3.1.schema.json" \
+  -r "$schema_path/cvss-v3.0.schema.json" \
+  -r "$schema_path/cvss-v2.0.schema.json" \
+  --errors=json \
+  --all-errors \
+  --multiple-of-precision=1 \
+  -c ajv-formats > /dev/null
+
+