{"uuid": "90ca9c7f-eb7d-490a-a28f-134e56b0a100", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-65400", "type": "seen", "source": "https://bsky.app/profile/threatintel.microsoft.com/post/3mtfjhfrglt2w", "content": "Microsoft Defender is monitoring the active exploitation of the CVE-2026-65400 improper authentication vulnerability on a limited number of macOS devices, with telemetry showing successful root account network sign-ins through Screen Sharing. ", "creation_timestamp": "2026-08-19T00:55:08.055645Z"}