Microsoft released security updates to patch the RoguePlanet vulnerability in its Defender antivirus software nearly a month after the flaw was publicly disclosed. The issue, tracked as CVE-2026-50656 with a CVSS score of 7.8, is a privilege escalation vulnerability in the Microsoft Malware Protection Engine (mpengine.dll), which handles scanning, detection, and cleaning functions. The flaw could allow attackers to gain SYSTEM-level privileges on affected systems. No specific exploitation instances or affected versions were detailed in the report. The update addresses the vulnerability in the core engine component of Microsoft Defender.

Picture a planet, and a star is usually lurking nearby. In our own solar system, the sun is perhaps the most critical member—sending light and heat to make life possible on Earth. But what if we didn’t need the sun to survive? Across the galaxy, astronomers have discovered planets roaming the cosmos without the guidance of a star. These free-floating bodies, called rogue planets, overturn the stereotype that big balls of hot gas are necessary for their existence. Now, scientists are investigating if stars are required for our livelihoods too. Perhaps we need “step away from this Earth-centric view that life has to be the way that we know it,” says Barbara Ercolano, an astrophysicist at Ludwig Maximilian University of Munich. “Maybe [rogue planets] are the norm, and we are just thinking of them as exotic because we live in a different system.” Astronomers have picked up hints of at least 70 wandering worlds in the Milky Way, but our galaxy may be home to 20 times more boundless planets than stars—amounting to trillions, models show. And this year, scientists precisely measured the mass and distance of a Saturn-sized rogue planet about 10,000 light-years from Earth, officially confirming the existence...

Microsoft ha publicado una corrección para RoguePlanet (CVE-2026-50656), un zero-day en el motor antimalware de Microsoft Defender. El fallo permitía una elevación local de privile…

Security researcher Nightmare-Eclipse, also known as Chaotic Eclipse, has released a new Windows privilege escalation exploit named ShieldBreak.

Nightmare Eclipse has released a new Microsoft Defender zero-day exploit named "ShieldBreak" after Microsoft released the August 2026 Patch Tuesday security updates.

Chaotic Eclipse released a PoC for ShieldBreak, a Microsoft Defender zero-day that bypasses a patch and could enable SYSTEM-level code exec

ShieldBreak is a claimed patch bypass for Defender flaw CVE-2026-50656, with a PoC tested on Windows 11 25H2 and Server 2025.

An anonymous security researcher known as Nightmare Eclipse has released a new Microsoft Defender zero-day exploit named "ShieldCrash" right after Microsoft rolled out its September 2026 Patch Tuesday...

Protege tu sistema contra RoguePlanet. Manual técnico experto para auditar y aplicar el parche de seguridad CVE-2026-50656 en Windows Defender

A new zero-day PoC exploit called

The researcher who found RoguePlanet has discovered ShieldBreak, a new way to bypass Microsoft’s fix and gain SYSTEM privileges.

The researcher who found RoguePlanet has discovered ShieldBreak, a new way to bypass Microsoft’s fix and gain SYSTEM privileges.

The researcher who found RoguePlanet has discovered ShieldBreak, a new way to bypass Microsoft’s fix and gain SYSTEM privileges.

Le chercheur en sécurité Chaotic Eclipse a publié une nouvelle preuve de concept d'exploitation qui tire parti d'une vulnérabilité de Microsoft Defender.

The Nightmare-Eclipse and Microsoft saga continues with another major Windows Defender exploit following 'RoguePlanet.'

Vulnérabilité Zero-Day : Le nouvel exploit ShieldBreak menace WindowsLe chercheur en sécurité Nightmare Eclipse a récemment publié un exploit nommé ShieldBreak, qui contourne le correctif de la faille RoguePlanet, permettant ainsi d'obtenir les privilèges SYSTEM sur des machines Windows à jour. Micr