CVE-2020-1122: Microsoft Windows 10

Medium severity, CVSS 5.5. EPSS: 1% chance of exploitation in the next 30 days.

An elevation of privilege vulnerability exists when the Windows Language Pack Installer improperly handles file operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows Language Pack Installer handles file operations.

Affected products

Microsoft Windows 10: version 1803 only; version 1809 only; version 1903 only; version 1909 only; version 2004 only
Microsoft Windows Server 2016: version 1903 only; version 1909 only; version 2004 only
Microsoft Windows Server 2019: affected versions not specified

Published 2020-09-11. Last modified 2026-06-17.