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TI-2020-12856 Aliases CVE-2020-16852GHSA-62r3-326j-grw4

OneDrive for Windows Elevation of Privilege Vulnerability

Priority LOW 33Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

<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>

Why it matters now

EPSS 0.00934 60th percentileScored 2026-11-07
Fix Fixed OneDrive for Windows (Microsoft): publication

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftOneDrive for Windowsbefore publicationpublicationPatch availableCNA
  • OneDrive for Windows VendorMicrosoft Affected before publication Fixed in publication Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:onedrive:-:*:*:*:*:windows:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:onedrive:-:*:*:*:*:windows:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

  • Fix · CNA OneDrive for Windows (Microsoft) Fixed in publication

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-16852
  2. 2026-10-03 Alias added: GHSA-62r3-326j-grw4

References

Patch 1

  • TI-2020-00629 A security feature bypass vulnerability exists in Microsoft OneDrive App for Android.This… CVSS 3.1CRITICAL 9.1
  • TI-2018-00550 Untrusted search path in Microsoft The installer of Microsoft OneDrive CVSS 3.0HIGH 7.8
  • TI-2018-00549 Untrusted search path in Microsoft OneDrive CVSS 3.0HIGH 7.8
  • TI-2023-10417 Microsoft OneDrive for MacOS Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.8
  • TI-2020-01424 An elevation of privilege vulnerability exists in Microsoft OneDrive that allows file… CVSS 3.1HIGH 7.8
  • TI-2025-37794 Microsoft OneDrive for Android Elevation of Privilege Vulnerability CVSS 3.1MEDIUM 6.5
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences