CVE-2020-1467: Microsoft Windows 10

Critical severity, CVSS 10.0. EPSS: 3.5% chance of exploitation in the next 30 days.

An elevation of privilege vulnerability exists when Windows improperly handles hard links. An attacker who successfully exploited this vulnerability could overwrite a targeted file leading to an elevated status. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses the vulnerability by correcting how Windows handles hard links.

Affected products

• Microsoft Windows 10: version 1607 only; version 1809 only; version 1903 only; version 1909 only; version 2004 only
• Microsoft Windows 7: affected versions not specified
• Microsoft Windows 8.1: affected versions not specified
• Microsoft Windows Rt 8.1: affected versions not specified
• Microsoft Windows Server 2008: affected versions not specified; version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: affected versions not specified; version 1903 only; version 1909 only; version 2004 only
• Microsoft Windows Server 2019: affected versions not specified

Published 2020-08-17. Last modified 2026-06-17.