The researcher says the flaw lets a local user reach System by making Windows Defender create a signature file at a path they choose. Microsoft hasn't commented, and there's no sign of exploitation in the wild.
Push Security found registration pages promising free AI subscriptions and other rewards, then routing visitors into two phishing-as-a-service platforms that grab tokens, passwords and session cookies.
Microsoft has documented fixes for a Windows issue that could prevent enabling Smart App Control, with different guidance for affected Windows versions.
The bug, nicknamed Node2Shell, Broccoli2Shell and HTTP2Shell, was added to CISA's Known Exploited Vulnerabilities catalog with a November 10 federal patch deadline.
An out-of-bounds write in Google's Brotli decoder affects Node.js, .NET, PowerShell and Python packages, and researchers say it can lead to code execution.
A buffer overflow in Google's Brotli C decoder can corrupt memory and expose data. Node.js, .NET and Python packages have shipped fixes, and proof-of-concept exploits are public.