Vulnerability in Microsoft Onedrive
CVE-2020-16852
<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>
EPSS: 0.009 (57.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.
Affected products
- Microsoft Onedrive
- Microsoft Onedrive For Windows — versions 0
Public proof-of-concept exploits
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-16852?
- CVE-2020-16852 is a high-severity vulnerability in Microsoft Onedrive. CVSS score: 7.1/10. Published 2020-09-11.
- How severe is CVE-2020-16852?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2020-16852 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.