Summary HiveNightmare AKA SeriousSAM AKA CVE-2021-36934 is a Microsoft Windows vulnerability which affects Windows 10 and 11 starting with Windows 10 version 1809. This vulnerability allows for an attacker that has local access to any low level (non-administrator) account to perform a privilege escalation attack in order to elevate their privileges or harvest credentials andContinue reading “HiveNightmare (CVE-2021-36934)”