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CVE-2020-16852

OneDrive for Windows Elevation of Privilege Vulnerability

Published: Sep 11, 2020Updated: Feb 23, 2026 Sources: CVE List NVD BDUNVD-CWE-noinfo
7.1HIGH
NVD MITRE
EPSS Score
0.9%
Top 41.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

<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>

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

NVD-CWE-noinfo

Affected Products

Microsoft Corp
commercial·USaka microsoft, microsoft corporation
OneDriveSaaSSaaS Service
Cloud & SaaS / saas-application
OneDrive for WindowsOn-prem
Operating Systems / windows
and 1 more affected products View all →

Exploitability

Official Patch Available
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References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16852
portal.msrc.microsoft.com

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