CVE-2026-20841 2

Vulnerability (CVE)

Threats Day Bulletin: AI Prompt RCE, Claude 0-Click, Ren Engine Loader, Auto 0-Days & 25+ Stories

Microsoft patched a command injection flaw in Windows Notepad (CVE-2026-20841, CVSS 8.8) that allows remote code execution when a user opens a malicious Markdown file containing 'file://' links or special URIs, fixed in this week's Patch Tuesday update....

Vulnerabilities & Patching

Microsoft Patch Tuesday for February 2026 — Snort rules and prominent vulnerabilities

Cyber Risks Cisco Talos

Microsoft's February 2026 security update covers 59 vulnerabilities, two of them rated Critical, both in Microsoft ACI Confidential Containers: CVE-2026-21522 (elevation of privilege, CVSS 6.7) and CVE-2026-23655 (information disclosure of secret tokens...

Vulnerabilities & Patching