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Patch Tuesday: Critical SAP NetWeaver and Microsoft Fixes

🔔 CISOs with SAP NetWeaver AS Java deployments should urgently patch two critical flaws: CVE-2025-42944, a CVSS 10.0 insecure deserialization in the RMI-P4 module, and a CVSS 9.9 insecure file-upload vulnerability that can lead to full system compromise. As an immediate mitigation, admins can apply P4 port filtering at the ICM level until patches are installed. Microsoft released fixes for 13 critical bugs this month, including Hyper‑V guest-to-host escalation issues and an NTLM elevation flaw (CVE-2025-54918) marked Exploitation More Likely; teams should prioritize domain controllers and virtualization hosts.