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diff --git a/internal/cpedict/cpedict.go b/internal/cpedict/cpedict.go
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+++ b/internal/cpedict/cpedict.go
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+// CPE 2.3 dictionary parser.
+//
+// The official NVD CPE dictionary is available here:
+// https://nvd.nist.gov/products/cpe
+package cpedict
+
+import "time"
+
+// Dictionary generator information.
+type Generator struct {
+  ProductName string `xml:"product_name"` // Product name.
+  ProductVersion string `xml:"product_version"` // Product version.
+  SchemaVersion string `xml:"schema_version"` // Schema version.
+  Timestamp time.Time `xml:"timestamp"` // Generation timestamp.
+}
+
+// Dictionary item title.
+type Title struct {
+  Lang string `xml:"lang,attr"` // language code
+  Text string `xml:",chardata"` // value
+}
+
+// Dictionary item reference.
+type Reference struct {
+  Href string `xml:"href,attr"` // Link
+  Text string `xml:",chardata"` // Text
+}
+
+// CPE 2.3 item attributes.
+type Cpe23Item struct {
+  Name string `xml:"name,attr"` // CPE 2.3 formatting string.
+}
+
+// Dictionary item.
+type Item struct {
+  CpeUri string `xml:"name,attr"` // CPE URI.
+  Cpe23Item Cpe23Item `xml:"cpe23-item"` // CPE 2.3 formatting string.
+  Titles []Title `xml:"title"` // Item titles.
+  References []Reference `xml:"references>reference"` // References.
+}
+
+// CPE dictionary.
+type Dictionary struct {
+  Generator Generator `xml:"generator"` // Dictionary generator.
+  Items []Item `xml:"cpe-item"` // Dictionary items.
+}