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Windows 11 Shutdown Bug Emerges After January Patch

Microsoft’s January 13, 2026 security update KB5073455 for Windows 11 23H2 (OS Build 22621.6491) triggers a shutdown bug on Enterprise and IoT editions, causing devices to reboot instead of powering down or entering hibernation due to interference with Secure Launch (a virtualization-based security feature). IT teams report power-management issues and potential data loss; a workaround is to force shutdown via shutdown /s /t 0, while a fix is promised in a future update. Disabling Secure Launch via Group Policy can restore normal shutdown but weakens boot integrity.

1 month ago•Source: Cyber Security News

Unauthenticated PAN-OS DoS Flaw Forces Quick GlobalProtect Patch

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52.555 min•1 month ago

Unauthenticated PAN-OS DoS Flaw Forces Quick GlobalProtect Patch

Palo Alto Networks patched a critical PAN-OS vulnerability (CVE-2026-0227) that lets unauthenticated attackers trigger a denial-of-service on GlobalProtect gateways/portals. The flaw, rated CVSS 7.7 (HIGH), stems from improper handling of unusual conditions and affects multiple PAN-OS versions (Cloud NGFW is spared). A PoC exists, exploitation is not yet observed, and no workarounds are available. Administrators should upgrade to the latest hotfixes (PAN-OS 12.1.4 or 11.2.10-h2) and verify configurations via Palo Alto’s support portal while monitoring for DoS attempts.

via Cyber Security News

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Windows 11 Shutdown Bug Emerges After January Patch

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