Vulnerability · Published Oct 13, 2021 · Assigned by microsoft
CVE-2021-40454Rich Text Edit Control Information Disclosure Vulnerability
Medium 5.5
In plain English
A medium-severity security flaw in Microsoft 365 Apps for Enterprise from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.5%top 57.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Rich Text Edit Control Information Disclosure Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.0 – before 10.0.17763.2237 |
| Microsoft | Windows Server 2019 | 10.0.0 – before 10.0.17763.2237 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.0 – before 10.0.17763.2237 |
| Microsoft | Windows 10 Version 1909 | 10.0.0 – before 10.0.18363.1854 |
| Microsoft | Windows 10 Version 21H1 | 10.0.0 – before 10.0.19043.1288 |
| Microsoft | Windows Server 2022 | 10.0.0 – before 10.0.20348.288 |
| Microsoft | Windows 10 Version 2004 | 10.0.0 – before 10.0.19041.1288 |
| Microsoft | Windows Server version 2004 | 10.0.0 – before 10.0.19041.1288 |
| Microsoft | Windows 10 Version 20H2 | 10.0.0 – before 10.0.19042.1288 |
| Microsoft | Windows Server version 20H2 | 10.0.0 – before 10.0.19042.1288 |
| Microsoft | Windows 11 version 21H2 | 10.0.0 – before 10.0.22000.258 |
| Microsoft | Windows 10 Version 1507 | 10.0.0 – before 10.0.10240.19086 |
| Microsoft | Windows 10 Version 1607 | 10.0.0 – before 10.0.14393.4704 |
| Microsoft | Windows Server 2016 | 10.0.0 – before 10.0.14393.4704 |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.0 – before 10.0.14393.4704 |
| Microsoft | Windows 8.1 | 6.3.0 – before 6.3.9600.20144 |
| Microsoft | Windows Server 2012 | 6.2.0 – before 6.2.9200.23490 |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.0 – before 6.2.9200.23490 |
| Microsoft | Windows Server 2012 R2 | 6.3.0 – before 6.3.9600.20144 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.0 – before 6.3.9600.20144 |
| Microsoft | Microsoft Office 2019 | 19.0.0 – before https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office 2019 for Mac | 16.0.0 – before 16.54.21101001 |
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1 – before https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office 2016 | 16.0.0 – before 16.0.5227.1000 |
| Microsoft | Microsoft Office 2013 Service Pack 1 | 15.0.0 – before 15.0.5389.1000 |
| Microsoft | Microsoft Office LTSC 2021 | 16.0.1 – before https://aka.ms/OfficeSecurityReleases |
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1 – before 16.54.21101001 |