Researcher shows Microsoft Defender patch bypass vulnerability
A security researcher known as Chaotic Eclipse has published a proof-of-concept showing that Microsoft Defender remains vulnerable to an arbitrary file read issue, despite a recent patch for CVE-2026-69414. The new flaw, called ShieldCrash, reportedly affects all supported desktop versions of Windows running the latest Malware Protection Engine. Microsoft recently shipped an update intended to address the earlier vulnerability.
- New proof-of-concept targets Microsoft Defender vulnerability
- Patch for CVE-2026-69414 reportedly bypassed
- Researcher says all supported Windows versions affected
- Latest update shipped but may not fully close the issue
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