ShieldBreak Zero-Day PoC Claims Microsoft Defender Patch Bypass With SYSTEM Access

A security researcher known as Chaotic Eclipse has released a proof-of-concept for a new Microsoft zero-day vulnerability called ShieldBreak. This vulnerability is related to Microsoft Defender for Windows and demonstrates a patch bypass for a previously known issue. The bypassed issue is associated with a CVSS score of 7.8. The vulnerability allows for SYSTEM access, indicating a high level of privilege. The researcher's proof-of-concept builds upon a previously identified vulnerability. The ShieldBreak vulnerability is connected to a flaw known as RoguePlanet.