CVE-2026-56179High· 8.3▾ TwilightOrigin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 45.7 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
Last analysed / modified upstream
Origin validation error in Windows Network Address Translation (NAT) allows an unauthorized attacker to perform spoofing over an adjacent network.
windows_11_version_24h2 >= 10.0.26100.0 < 10.0.26100.9168windows_11_version_25h2 >= 10.0.26200.0 < 10.0.26200.9168windows_11_version_26h1 >= 10.0.28000.0 < 10.0.28000.2704windows_server_2025 >= 10.0.26100.0 < 10.0.26100.33296windows_server_2025_server_core_installation >= 10.0.26100.0 < 10.0.26100.33296Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-56181High· 8.3Windows Network Address Translation (NAT) Spoofing Vulnerability
CVE-2026-42829High· 7.8Windows Administrator Protection Secure Feature Bypass Vulnerability
CVE-2026-45600High· 7.8Windows Kernel-Mode Driver Elevation of Privilege Vulnerability
CVE-2026-45654High· 7.9Secure Boot Security Feature Bypass Vulnerability
CVE-2026-42910High· 7.8Windows Hotpatch Monitoring Service Elevation of Privilege Vulnerability
CVE-2026-44809High· 7.8Windows Common Log File System Driver Elevation of Privilege Vulnerability