Zoom Flaw Exploited with Only 20 Prompts in Less Than 24 Hours

**Zoomsday (CVE-2026-53413)** — A critical buffer-overwrite vulnerability in Zoom’s annotation feature can enable any meeting participant to remotely execute code on other participants’ devices (Windows, macOS, iOS, Android) via a protocol that opens a direct channel; Zoom has released patches for affected Workplace, Rooms, and Meeting SDK versions. The report highlights that an engineer used fewer than 20 prompts with publicly available AI models to produce a working exploit in under 24 hours, demonstrating how AI dramatically shortens the timeline from vulnerability discovery to weaponization and increasing urgency for faster patching and proactive, AI-assisted defensive testing.