Get the Whitepaper called HiveNightmare AKA SeriousSAM. It details an overview of CVE-2021-36934 and provides exploitation details.
You can download it from the following link: https://packetstormsecurity.com/files/download/164006/hivenightmare.pdf
Source: https://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html