This vulnerability (CVE-2026-58609) is an out-of-bounds read flaw classified under CWE-125 affecting the Microsoft Graphics Component in Windows 10 Version 1607 (build 10.0.14393.0). The flaw allows an unauthorized attacker to execute code locally with high impact on confidentiality, integrity, and availability. The CVSS 3.1 base score is 7.8, reflecting high severity with local attack vector, low complexity, no privileges required, and user interaction needed. Microsoft has released an official fix for this vulnerability as documented in their security update guide.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code locally on the affected system, potentially leading to full system compromise. The impact includes high confidentiality, integrity, and availability loss. However, exploitation requires local access and user interaction.

An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided by Microsoft as soon as possible. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58609 for detailed patching instructions.