The security researcher known as Nightmare Eclipse has dropped three zero-day exploits targeting products from Avast, CrowdStrike, and Nvidia. Also known as Chaotic Eclipse, Infinite Nightmare, and MSNightmare, the security researcher came to fame for a series of zero-day exploits targeting Microsoft’s products, but has recently moved to other vendors as well. In late August, Nightmare Eclipse released a privilege escalation zero-day in a Kaspersky endpoint security product. Dubbed HardBreacher, the exploit has been patched by Kaspersky on August 31. Within a short window last week, Nightmare Eclipse dropped three new zero-day exploits, dubbed PrettyPrague, FalconFlank, and GreenSection. The PrettyPrague proof-of-concept (PoC) code, the researcher says, targets the Avast sandbox to spawn…