CVE-2024-21338
HighActively exploited (CISA KEV)Known to be used in ransomware campaigns
Description
Windows Kernel Elevation of Privilege Vulnerability
SeverityHigh
CVSS7.8
Exploit probability—
Product
Microsoft Windows
PublishedFeb 13, 2024
First seenFeb 13, 2024
Added to KEVMar 4, 2024
Weakness typeCWE-822CWE-822
How to fix
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date: Mar 25, 2024Update
- microsoft windows_10_180910.0.17763.5458 or later
- microsoft windows_10_21h210.0.19044.4046 or later
- microsoft windows_10_22h210.0.19045.4046 or later
- microsoft windows_11_21h210.0.22000.2777 or later
- microsoft windows_11_22h210.0.22621.3155 or later
- microsoft windows_11_23h210.0.22631.3155 or later
- microsoft windows_server_201910.0.17763.5458 or later
- microsoft windows_server_202210.0.20348.2322 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft windows_10_1809 | v < 10.0.17763.5458 | 10.0.17763.5458 |
| microsoft windows_10_21h2 | v < 10.0.19044.4046 | 10.0.19044.4046 |
| microsoft windows_10_22h2 | v < 10.0.19045.4046 | 10.0.19045.4046 |
| microsoft windows_11_21h2 | v < 10.0.22000.2777 | 10.0.22000.2777 |
| microsoft windows_11_22h2 | v < 10.0.22621.3155 | 10.0.22621.3155 |
| microsoft windows_11_23h2 | v < 10.0.22631.3155 | 10.0.22631.3155 |
| microsoft windows_server_2019 | v < 10.0.17763.5458 | 10.0.17763.5458 |
| microsoft windows_server_2022 | v < 10.0.20348.2322 | 10.0.20348.2322 |
| microsoft windows_server_2022_23h2 | v ≤ 10.0.25398.709 | — |
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