Researcher Drops New Microsoft Defender PoC Showing Shield Break Patch Can Be Bypassed
Summary: Security researcher Chaotic Eclipse released a proof-of-concept for ShieldCrash, a Microsoft Defender zero-day assessed as a patch bypass for CVE-2026-69414 (CVSS 7.8), also called ShieldBreak, which the researcher reported last month. The PoC demonstrates arbitrary file read as SYSTEM on the latest Windows version, and the researcher says Microsoft missed a spot even after patching the flaw in Malware Protection Engine version 1.1.26080.3.
What you should know: The bypass lands days after Microsoft shipped its fix, and the researcher behind it has also published PoCs for CrowdStrike Falcon Sensor, Kaspersky, Avast, and NVIDIA products - so the security tools you rely on are the target, not just the systems they guard.
Read the original at The Hacker News ↗
- Topics
- Vulnerabilities & Patching
- Mentions
- CVE-2026-69414
- Related
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