Windows Network Address Translation (NAT) Spoofing Vulnerability

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products8

• Windows 11 Version 24H2 for ARM64-based Systems
• Windows 11 Version 24H2 for x64-based Systems
• Windows 11 Version 25H2 for ARM64-based Systems
• Windows 11 Version 25H2 for x64-based Systems
• Windows 11 Version 26H1 for ARM64-based Systems
• Windows 11 version 26H1 for x64-based Systems
• Windows Server 2025
• Windows Server 2025 (Server Core installation)

✅ Remediation

KB5120233 (Security Update) — fixed build 10.0.26100.33296 KB5120228 (Security Hotpatch Update) — fixed build 10.0.26100.33222 KB5121003 (Security Update) — fixed build 10.0.26200.9168 KB5120994 (Security Hotpatch Update) — fixed build 10.0.26200.9106 KB5121003 (Security Update) — fixed build 10.0.26100.9168 KB5120994 (Security Hotpatch Update) — fixed build 10.0.26100.9106 KB5121000 (Security Update) — fixed build 10.0.28000.2704

🔗 References (11)

• advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56179
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5120233
• referencehttps://support.microsoft.com/help/5120233
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5120228
• referencehttps://support.microsoft.com/help/5120228
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5121003
• referencehttps://support.microsoft.com/help/5121003
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5120994
• referencehttps://support.microsoft.com/help/5120994
• patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5121000
• referencehttps://support.microsoft.com/help/5121000