CyberSecurity News
Nightmare Eclipse Drops Windows Zero-Day Exploit ‘SignDrop’
SecurityWeek
· November 13, 2026AI summary
A newly disclosed Windows zero-day exploit called SignDrop has been released by Nightmare Eclipse. The exploit takes advantage of the Windows operating system, specifically abusing the Common Log File System and Windows Defender. This abuse allows for arbitrary file creation within the context of the antimalware process.
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