CVE-2021-40454: Rich Text Edit Control Information Disclosure Vulnerability
First published: Wed Oct 13 2021(Updated: )
Rich Text Edit Control Information Disclosure Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft 365 Apps | ||
| Microsoft 365 Apps | ||
| Microsoft Office | =2013-sp1 | |
| Microsoft Office | =2013-sp1 | |
| Microsoft Office | =2013_rt-sp1 | |
| Microsoft Office | =2016 | |
| Microsoft Office | =2016 | |
| Microsoft Office | =2019 | |
| Microsoft Office | =2019 | |
| Microsoft Office | =2019 | |
| Microsoft Office | =2021 | |
| Microsoft Office X64 | =2021 | |
| Microsoft Office X86 | =2021 | |
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | ||
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =20h2 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =21h1 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1607 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1809 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =1909 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 10 | =2004 | |
| Microsoft Windows 11 | ||
| Microsoft Windows 11 | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT 8.1 | ||
| Microsoft Windows Server | =20h2 | |
| Microsoft Windows Server | =2004 | |
| Microsoft Windows Server 2012 | ||
| Microsoft Windows Server 2012 | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2022 |
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Frequently Asked Questions
What is CVE-2021-40454?
CVE-2021-40454 is a vulnerability that allows an attacker to disclose sensitive information using a Rich Text Edit Control.
Which software versions are affected by CVE-2021-40454?
Microsoft Office LTSC for Mac 2021, Microsoft Office 2013 SP1, Microsoft Office 2013 RT SP1, Microsoft Office 2016, Microsoft Office 2019, Microsoft Office 2021, 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, and Microsoft Windows Server 2022 are affected by CVE-2021-40454.
What is the severity of CVE-2021-40454?
The severity of CVE-2021-40454 is rated as medium, with a severity value of 5.5.
How can I fix CVE-2021-40454?
To fix CVE-2021-40454, apply the latest security updates provided by Microsoft.
Where can I find more information about CVE-2021-40454?
You can find more information about CVE-2021-40454 on the Microsoft Security Guidance Advisory page for CVE-2021-40454.
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- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/title
- agent/references
- agent/remedy
- agent/weakness
- agent/description
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/microsoft
- canonical/microsoft 365 apps
- canonical/microsoft office
- version/microsoft office/2013-sp1
- version/microsoft office/2013_rt-sp1
- version/microsoft office/2016
- version/microsoft office/2019
- version/microsoft office/2021
- canonical/microsoft office x64
- version/microsoft office x64/2021
- canonical/microsoft office x86
- version/microsoft office x86/2021
- canonical/microsoft windows 10
- version/microsoft windows 10/20h2
- version/microsoft windows 10/21h1
- version/microsoft windows 10/1607
- version/microsoft windows 10/1809
- version/microsoft windows 10/1909
- version/microsoft windows 10/2004
- canonical/microsoft windows 11
- canonical/microsoft windows 8.1
- canonical/microsoft windows rt 8.1
- canonical/microsoft windows server
- version/microsoft windows server/20h2
- version/microsoft windows server/2004
- canonical/microsoft windows server 2012
- version/microsoft windows server 2012/r2
- canonical/microsoft windows server 2016
- canonical/microsoft windows server 2019
- canonical/microsoft windows server 2022