SummaryUse after free in Windows CCFFilter Driver allows an unauthorized attacker to execute code over a network.RemediationInventory every Microsoft Windows 10 1607 deployment, including staging.Upgrade Microsoft Windows 10 1607 to the fixed version for your release line, listed under Affected versions.Confirm the running version after the upgrade.ReferencesPatchhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83780