This vulnerability (CVE-2026-50493) involves a use-after-free condition in the Windows Graphics Kernel component of Microsoft Windows 10 Version 1809 (build 10.0.17763.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could lead to elevation of privileges, allowing the attacker to gain higher-level permissions on the system. Microsoft has released an official patch to address this issue.

An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges, potentially gaining higher system rights. This could allow the attacker to execute code with elevated permissions, compromising system integrity, confidentiality, and availability. No known exploits in the wild have been reported at this time.

An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50493 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.