CVE-2020-16910

MEDIUM

Description

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.To exploit this vulnerability, an attacker could run a specially crafted application to bypass Unified Extensible Firmware Interface (UEFI) variable security in Windows.The security update addresses the vulnerability by correcting security feature behavior to enforce permissions., aka 'Windows Security Feature Bypass Vulnerability'.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16910

Details

Source: MITRE

Published: 2020-10-16

Updated: 2020-10-21

Type: CWE-281

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM