SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-40454

Rich Text Edit Control Information Disclosure Vulnerability

MEDIUM 5.5EPSS 0.50%

Does this matter?

Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own.

Description

Rich Text Edit Control Information Disclosure Vulnerability

CVSS 3.1
5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
0.50% probability · 41th percentile
CISA KEV
Not listed
Weakness
CWE-312
Affected
microsoft/365 apps · microsoft/office · microsoft/windows 10 · microsoft/windows 11 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.