VULNERABILITY INTELLIGENCE
CVE-2020-16910
CVSS score6.2 MEDIUM
EPSS probability2.79%
CISA KEVNot currently listed
Published2020-10-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Description
<p>A security feature bypass vulnerability exists when Microsoft Windows fails to handle file creation permissions, which could allow an attacker to create files in a protected Unified Extensible Firmware Interface (UEFI) location.</p> <p>To exploit this vulnerability, an attacker could run a specially crafted application to bypass Unified Extensible Firmware Interface (UEFI) variable security in Windows.</p> <p>The security update addresses the vulnerability by correcting security feature behavior to enforce permissions.</p>
Weakness classification
- CWE-281: Improper Preservation of Permissions
Primary references
- secure@microsoft.com — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory