feat: Improved duplicate CVE handling (Fixes #2446) (#2450)

* Fixes #2446

Author: anthonyharrison

cve_bin_tool/cve_scanner.py

@@ -211,8 +211,8 @@ def get_cves(self, product_info: ProductInfo, triage_data: TriageData):
                 query = f"""
                 SELECT CVE_number, severity, description, score, cvss_version, cvss_vector, data_source
                 FROM cve_severity
-                WHERE CVE_number IN ({",".join(["?"] * number_of_cves)}) AND score >= ?
-                ORDER BY CVE_number
+                WHERE CVE_number IN ({",".join(["?"] * number_of_cves)}) AND score >= ? and description != "unknown"
+                ORDER BY CVE_number, last_modified DESC
                 """
                 # Add score parameter to tuple listing CVEs to pass to query
                 result = self.cursor.execute(query, cve_list[start:end] + [self.score])