SummaryHeap-based buffer overflow in Windows Text Shaping allows an unauthorized attacker to execute code over a network.RemediationInventory every Microsoft Windows 10 Version 1809 deployment, including staging.Upgrade Microsoft Windows 10 Version 1809 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-2026-102210