CVE tracker / CVE-2024-38186

CVE-2024-38186

CVE-2024-38186 is the Windows Kernel-Mode Driver Elevation of Privilege Vulnerability. Microsoft rates it Important, CVSS 7.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published August 13, 2024.

Risk summary

HighElevation of Privilege

7.8

CVSS v3 base

0.8%

EPSS: chance of exploitation in 30 days

High

Severity

Important

Microsoft's rating

Less Likely

Microsoft: exploitation

In CISA KEV

How to fix it

Microsoft lists 23 affected products and the update that fixes each:

KB5040427 · fixed build 10.0.19045.4651, 10.0.19044.4651
Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 21H2 for ARM64-based Systems, and 1 more
KB5040430 · fixed build 10.0.17763.6054
Windows Server 2019 (Server Core installation), Windows Server 2019, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems
KB5040431 · fixed build 10.0.22000.3079
Windows 11 version 21H2 for ARM64-based Systems, Windows 11 version 21H2 for x64-based Systems
KB5040434 · fixed build 10.0.14393.7159
Windows Server 2016 (Server Core installation), Windows Server 2016, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems
KB5040437 · fixed build 10.0.20348.2582
Windows Server 2022, Windows Server 2022 (Server Core installation)
KB5040438 · fixed build 10.0.25398.1009
Windows Server 2022, 23H2 Edition (Server Core installation)
KB5040442 · fixed build 10.0.22631.3880, 10.0.22621.3880
Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 22H2 for x64-based Systems, Windows 11 Version 22H2 for ARM64-based Systems

What Microsoft changed

August 13, 2024: Information published. This CVE was addressed by updates that were released in July 2024, but the CVE was inadvertently omitted from the July 2024 Security Updates. This is an informational change only. Customers who have already installed the July 2024 updates do not need to take any further action.

Details

Weakness: CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
Publicly disclosed (Microsoft): No
Exploited (Microsoft): No
Known exploited (CISA KEV): Not listed
Published: August 13, 2024
Last revised: August 13, 2024

Get told when this changes

Senserva Watch emails Microsoft security and patch alerts when something moves: a new exploitation report, a revised fix, a known issue. Free, one email address.

Join Senserva Watch

References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.