sap 4 Critical SAP NetWeaver Flaw Patched in June 2025 Security Update Jun 10, 2025 Critical SAP Vulnerability Exploited by Chinese Hackers for SuperShell Deployment May 9, 2025 Critical SAP NetWeaver Flaw: Confirmed Exploitation by Hackers Apr 25, 2025 Critical SAP Zero-Day Vulnerability Prompts Emergency Patch Release Apr 25, 2025