Tech May 14, 2026 10 min Microsoft May 2026 Patch Tuesday: Netlogon, DNS Client RCE vs ZeroLogon/SIGRed 137 CVEs, no zero-days. Netlogon and DNS Client RCEs (both CVSS 9.8) lead — compared against ZeroLogon/SIGRed, with patch priority tiers and detection notes for SOC teams. Microsoft Windows セキュリティ 脆弱性 CVE RCE Active Directory DNS