Nightmare Eclipse has dropped ShieldBreak, a Windows zero-day exploit that allows any user to gain System privileges.
The Nightmare-Eclipse and Microsoft saga continues with another major Windows Defender exploit following 'RoguePlanet.' ...
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Microsoft's Security Response Center is being blamed for the zero-day BlueHammer exploit leak
On April 2, 2026, a security researcher using the name Chaotic Eclipse published a blog post stating that they were "doing it again." Under this warning, a link to a GitHub account page for a user ...
Exploit code has been released for an unpatched Windows privilege escalation flaw reported privately to Microsoft, allowing attackers to gain SYSTEM or elevated administrator permissions. Dubbed ...
A security researcher disclosed a critical Windows vulnerability enabling system-wide access, defying Microsoft's prior legal warnings over revealing undisclosed software flaws.
Admins responsible for Windows fleets are advised to take action to protect their systems against this actively exploited vulnerability. Here's what you need to do to stay secure.
Update August 13, 13:03 EDT: Microsoft now tracks LegacyHive as CVE-2026-62832. A security researcher using the "Nightmare Eclipse" handle has released a Windows zero-day exploit dubbed LegacyHive ...
Threat actors are using three publicly available proof-of-concept exploits to attack Microsoft Defender and turn the security platform's primary cleanup and protection functions against organizations ...
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