CVE-2021-40444
CISA KEV RANSOMWARE
ACT NOW
Priority: 0.00
BB Relevance:
0/100
Published: N/A
Modified: N/A
First seen: 2026-10-29
Status: pending_score
Description
Microsoft MSHTML contains a unspecified vulnerability that allows for remote code execution.
CISA Known Exploited Vulnerability
Vendor / Product
Microsoft — MSHTML
Date Added
2021-11-03
Remediation Due
2021-11-17
Ransomware Use
CONFIRMED
https://nvd.nist.gov/vuln/detail/CVE-2021-40444
Weakness Classification (1)
Affected Software (19)
| Vendor | Product | Version |
|---|---|---|
| microsoft | windows_10_1507 | < 10.0.10240.19060 |
| microsoft | windows_10_1607 | < 10.0.14393.4651 |
| microsoft | windows_10_1809 | < 10.0.17763.2183 |
| microsoft | windows_10_1909 | < 10.0.18363.1801 |
| microsoft | windows_10_2004 | < 10.0.19041.1237 |
| microsoft | windows_10_20h2 | < 10.0.19042.1237 |
| microsoft | windows_10_21h1 | < 10.0.19043.1237 |
| microsoft | windows_7 | - |
| microsoft | windows_8.1 | - |
| microsoft | windows_rt_8.1 | - |
| microsoft | windows_server_2004 | < 10.0.19041.1237 |
| microsoft | windows_server_2008 | - |
| microsoft | windows_server_2008 | r2 |
| microsoft | windows_server_2012 | - |
| microsoft | windows_server_2012 | - |
| microsoft | windows_server_2016 | < 10.0.14393.4651 |
| microsoft | windows_server_2019 | < 10.0.17763.2183 |
| microsoft | windows_server_2022 | < 10.0.20348.230 |
| microsoft | windows_server_20h2 | < 10.0.19042.1237 |
References & Advisories (6)
US Government Resource
Third Party Advisory
VDB Entry
Patch
Vendor Advisory
Mitigation
Patch
Vendor Advisory
Exploit
Third Party Advisory
VDB Entry
Exploit
Third Party Advisory
VDB Entry