Big Patch Tuesday, ‘Nightmare Eclipse’ drops Windows 0-day, Claude Fable restricted at Microsoft

Patch Tuesday for the books ‘Nightmare Eclipse’ drops Windows 0-day Claude Fable restricted at Microsoft Get the show notes here: https://cisoseries.com/cybersecurity-news-big-patch-tuesday-nightmare-eclipse-drops-windows-0-day-claude-fable-restricted-at-microsoft/ Thanks to our episode sponsor, Doppel Social engineering attacks look trustworthy — a routine request, an internal email, a…

PoC Exploit Released for Linux Kernel Guest-to-Host Escape Vulnerability

A proof-of-concept (PoC) exploit has been publicly released for a critical Linux kernel vulnerability, tracked as CVE-2026-46316, enabling guest-to-host escape in KVM/arm64 environments. The flaw, dubbed “ITScape” by security researcher Hyunwoo Kim (V4bel), affects the Kernel-based Virtual Machine (KVM) subsystem…