U.S. CISA adds Microsoft SharePoint and Check Point SmartConsole flaws to its Known Exploited Vulnerabilities catalog

Feed of July 21–23, 2026 security news: CISA added multiple vulnerabilities (including Microsoft SharePoint and Check Point SmartConsole issues) to its Known Exploited Vulnerabilities catalog. A public PoC for critical SharePoint RCE CVE-2026-50522 triggered active exploitation. Check Point patched an actively exploited SmartConsole authentication bypass (CVE-2026-16232). Cisco Talos exposed msaRAT, a Chaos ransomware RAT that tunnels C2 through victims' Chrome/Edge via the Chrome DevTools Protocol. Google DeepMind released Gemini 3.5 Flash Cyber, an AI model for vulnerability discovery (for政府