This vulnerability, tracked as CVE-2026-48568 and classified under CWE-693 (Protection Mechanism Failure), affects Windows 10 Version 1607 (build 10.0.14393.0). It involves a failure in the Secure Boot protection mechanism that could be exploited by an authorized attacker with high privileges to bypass security features on the local system. The CVSS 3.1 base score is 7.9, reflecting high severity with impacts on confidentiality and integrity. Microsoft has released an official fix for this issue, as detailed in their security advisory.

An authorized attacker with high privileges on a vulnerable Windows 10 Version 1607 system can bypass Secure Boot protections, potentially compromising system integrity and confidentiality. There is no indication of impact on availability. No known exploits are reported in the wild at this time.

Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1607 to remediate this issue. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48568 for detailed update instructions.