Title formats is variable length and includes:

Title type + Year + Month + Days

CVE prefix + Year + Arbitrary Digits

IMPORTANT: The variable length arbitrary digits will begin at four (4) fixed digits and expand with arbitrary digits only when needed in a calendar year, for example, CVE-YYYY-NNNN and if needed CVE-YYYY-NNNNN, CVE-YYYY-NNNNNNN, and so on. This also means there will be no changes needed to previously assigned CVE-IDs, which all include 4 digits.

[UP-XXXX-XX-XX]   ： Update the class description

[NOTE-XXX-XX-XX] ：New Note description

[CVE-XXXX-*] : Common Vulnerabilities & Exposures