Microsoft Defender experienced a zero-day vulnerability named RoguePlanet, which granted SYSTEM access on updated Windows systems. An anonymous security researcher, known as Chaotic Eclipse or Nightmare-Eclipse, released a proof-of-concept (PoC) exploit for this vulnerability.
Earlier reports mentioning Microsoft
Microsoft released a record-breaking number of software updates on June 11, 2026, to address nearly 200 security vulnerabilities across its Windows operating systems and related software. This Patch Tuesday update included approximately three dozen "critical" vulnerabilities, with exploit code already…
Microsoft restored some GitHub repositories on Monday following a security incident that compromised 73 of its open-source projects, allowing attackers to inject an information stealer into the code. The company stated its priority is to protect customers and the broader…