{"uuid": "f20408b8-cbde-4439-a373-00ad5e06cc81", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-50656", "type": "seen", "source": "https://t.me/pphm_HackerNews/1921", "content": "\ud83d\udd34 Microsoft patches RoguePlanet Defender zero-day vulnerability\n\nMicrosoft has released a security patch to address a Defender zero-day vulnerability known as \"RoguePlanet,\" disclosed after the June 2026 Patch Tuesday.\n\nThe flaw (tracked as CVE-2026-50656) was disclosed by a security researcher using the \"Nightmare Eclipse\" handle as part of an ongoing dispute with Microsoft over the company's bug bounty and vulnerability disclosure practices.\n\nThey also shared a proof-of-concept exploit in a self-hosted Git repository, claiming that Microsoft had previously removed their repos hosting exploits on GitHub and GitLab.", "creation_timestamp": "2026-08-21T23:00:09.520937Z"}