CVE-2018-8566

BitLocker Security Feature Bypass Vulnerability

CVE-2018-8566 is fixed in 19 products on 1 platform, first by KB4465659, released November 13, 2018. It is not reported as exploited. Patch Radar priority: Routine.

RoutinePublicly disclosed
CVSS
4.6
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0106
64th percentile

<p>A security feature bypass vulnerability exists when Windows improperly suspends BitLocker Device Encryption. An attacker with physical access to a powered off system could exploit this vulnerability to gain access to encrypted data.</p> <p>To exploit the vulnerability, an attacker must gain physical access to the target system prior to the next system reboot.</p> <p>The security update fixes the vulnerability by ensuring Windows resumes BitLocker Device Encryption.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Windows 10 Version 1607 for 32-bit Systems KB4465659 Nov 13, 2018
Windows 10 Version 1607 for x64-based Systems KB4465659 Nov 13, 2018
Windows 10 Version 1703 for 32-bit Systems KB4465660 Nov 13, 2018
Windows 10 Version 1703 for x64-based Systems KB4465660 Nov 13, 2018
Windows 10 Version 1709 for 32-bit Systems KB4465661 Nov 13, 2018
Windows 10 Version 1709 for ARM64-based Systems KB4465661 Nov 13, 2018
Windows 10 Version 1709 for x64-based Systems KB4465661 Nov 13, 2018
Windows 10 Version 1803 for 32-bit Systems KB4465663 Nov 13, 2018
Windows 10 Version 1803 for ARM64-based Systems KB4465663 Nov 13, 2018
Windows 10 Version 1803 for x64-based Systems KB4465663 Nov 13, 2018
Windows 10 Version 1809 for 32-bit Systems KB4465664 Nov 13, 2018
Windows 10 Version 1809 for ARM64-based Systems KB4465664 Nov 13, 2018
Windows 10 Version 1809 for x64-based Systems KB4465664 Nov 13, 2018
Windows Server 2016 KB4465659 Nov 13, 2018
Windows Server 2016 (Server Core installation) KB4465659 Nov 13, 2018
Windows Server 2019 KB4465664 Nov 13, 2018
Windows Server 2019 (Server Core installation) KB4465664 Nov 13, 2018
Windows Server, version 1709 (Server Core Installation) KB4465661 Nov 13, 2018
Windows Server, version 1803 (Server Core Installation) KB4465663 Nov 13, 2018