CVE-2020-16853: Microsoft OneDrive

High severity, CVSS 7.1. EPSS: 1% chance of exploitation in the next 30 days.

<p>An elevation of privilege vulnerability exists when the OneDrive for Windows Desktop application improperly handles symbolic links. An attacker who successfully exploited this vulnerability could overwrite a targeted file with an elevated status.</p> <p>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 delete a targeted file with an elevated status.</p> <p>The update addresses this vulnerability by correcting where the OneDrive updater performs file writes while running with elevation.</p>

Affected products

• Microsoft OneDrive: affected versions not specified

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