SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-1398

An elevation of privilege vulnerability exists when Windows Lockscreen fails to properly handle Ease of Access dialog.An attacker who successfully exploited the vulnerability could execute commands with elevated permissions.The security update addresses…

MEDIUM 6.8EPSS 1.17%

Does this matter?

Lower severity and a low EPSS score (1.17%). Track it; it rarely justifies an emergency change on its own.

Description

An elevation of privilege vulnerability exists when Windows Lockscreen fails to properly handle Ease of Access dialog.An attacker who successfully exploited the vulnerability could execute commands with elevated permissions.The security update addresses the vulnerability by ensuring that the Ease of Access dialog is handled properly., aka 'Windows Lockscreen Elevation of Privilege Vulnerability'.

CVSS 3.1
6.8 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.17% probability · 67th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
microsoft/windows 10 · microsoft/windows server 2016 · microsoft/windows server 2019
Source
secure@microsoft.com
EPSS trend
0%3%5%26 October 2026: 1.17%26 October 202626 October 2026

EPSS 1.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.