CVE-2019-1091: Microsoft Windows 10

Medium severity, CVSS 5.5. EPSS: 2% chance of exploitation in the next 30 days.

An information disclosure vulnerability exists when Unistore.dll fails to properly handle objects in memory, aka 'Microsoft unistore.dll Information Disclosure Vulnerability'.

Affected products

• Microsoft Windows 10: affected versions not specified; version 1607 only; version 1703 only; version 1709 only; version 1803 only; version 1809 only; …
• Microsoft Windows Server 2016: affected versions not specified; version 1803 only; version 1903 only
• Microsoft Windows Server 2019: affected versions not specified

Published 2019-07-15. Last modified 2026-06-17.