Monthly
Security feature bypass in Windows Secure Boot allows a high-privileged local attacker to circumvent the boot integrity protection mechanism, undermining trust in the Windows boot chain. The flaw (CWE-1329, reliance on a component that is not updateable) carries a CVSS 7.9 rating due to scope change and high impact on confidentiality and integrity, and no public exploit has been identified at time of analysis. Successful exploitation could enable pre-OS persistence such as bootkits, defeating a foundational Windows security control.
Secure Boot bypass in Microsoft Windows allows an authorized local attacker with high privileges to defeat the platform's protection mechanism and tamper with the pre-OS boot chain. The CVSS 7.9 score reflects a scope-changing impact on confidentiality and integrity from a local vector, and no public exploit identified at time of analysis. The single MSRC reference indicates a Microsoft-tracked issue that primarily threatens code-integrity and boot-trust guarantees rather than runtime availability.
Windows Secure Boot bypass across Windows 10 version 1809 through Windows 11 version 26H1 and multiple Windows Server editions allows an authorized local administrator to circumvent boot-time integrity protections by exploiting a non-updateable boot chain component. A successful attacker can subvert the UEFI Secure Boot trust chain to load unsigned or malicious code at the pre-OS stage, enabling persistent bootkit or rootkit implantation that survives OS reinstallation. No public exploit code has been identified and CISA SSVC reports no active exploitation, though the SSVC technical impact rating of 'total' correctly reflects full defeat of the boot integrity boundary.
Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB. [CVSS 6.4 MEDIUM]
The affected device uses off-the-shelf software components that contain unpatched vulnerabilities. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.
Security feature bypass in Windows Secure Boot allows a high-privileged local attacker to circumvent the boot integrity protection mechanism, undermining trust in the Windows boot chain. The flaw (CWE-1329, reliance on a component that is not updateable) carries a CVSS 7.9 rating due to scope change and high impact on confidentiality and integrity, and no public exploit has been identified at time of analysis. Successful exploitation could enable pre-OS persistence such as bootkits, defeating a foundational Windows security control.
Secure Boot bypass in Microsoft Windows allows an authorized local attacker with high privileges to defeat the platform's protection mechanism and tamper with the pre-OS boot chain. The CVSS 7.9 score reflects a scope-changing impact on confidentiality and integrity from a local vector, and no public exploit identified at time of analysis. The single MSRC reference indicates a Microsoft-tracked issue that primarily threatens code-integrity and boot-trust guarantees rather than runtime availability.
Windows Secure Boot bypass across Windows 10 version 1809 through Windows 11 version 26H1 and multiple Windows Server editions allows an authorized local administrator to circumvent boot-time integrity protections by exploiting a non-updateable boot chain component. A successful attacker can subvert the UEFI Secure Boot trust chain to load unsigned or malicious code at the pre-OS stage, enabling persistent bootkit or rootkit implantation that survives OS reinstallation. No public exploit code has been identified and CISA SSVC reports no active exploitation, though the SSVC technical impact rating of 'total' correctly reflects full defeat of the boot integrity boundary.
Windows Secure Boot stores Microsoft certificates in the UEFI KEK and DB. [CVSS 6.4 MEDIUM]
The affected device uses off-the-shelf software components that contain unpatched vulnerabilities. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.