CVE tracker / CVE-2024-43516

CVE-2024-43516

CVE-2024-43516 is the Windows Secure Kernel Mode Elevation of Privilege Vulnerability. Microsoft rates it Important, CVSS 7.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published October 8, 2024.

Risk summary

HighElevation of Privilege

7.8

CVSS v3 base

0.6%

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 27 affected products and the update that fixes each:

KB5044280 · fixed build 10.0.22000.3260
Windows 11 version 21H2 for ARM64-based Systems, Windows 11 version 21H2 for x64-based Systems
KB5046612 · fixed build 10.0.14393.7515
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
KB5046613 · fixed build 10.0.19045.5131, 10.0.19044.5131
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
KB5046615 · fixed build 10.0.17763.6532
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
KB5046616 · fixed build 10.0.20348.2849
Windows Server 2022 (Server Core installation), Windows Server 2022
KB5046618 · fixed build 10.0.25398.1251
Windows Server 2022, 23H2 Edition (Server Core installation)
KB5046633 · fixed build 10.0.22631.4460, 10.0.22621.4460
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
KB5046665 · fixed build 10.0.10240.20826
Windows 10 for x64-based Systems, Windows 10 for 32-bit Systems
KB5047621 · fixed build 10.0.26100.2303
Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems

What Microsoft changed

October 8, 2024: Information published.
November 12, 2024: The following updates have been made: 1) To comprehensively address this vulnerability, Microsoft has released October 2024 security updates for all affected client versions of Windows 10 and Windows 11, Windows Server 2016, Windows Server 2019, and Windows Server 2022. Microsoft recommends that customers install the updates to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.2) FAQ added to explain further recommended actions to take after installing the November 2024 security update: This update affects a component of Virtualization-based Security (VBS). The policy mitigations described in KB5042562: Guidance for blocking rollback of Virtualization-based Security (VBS) related security updates - Microsoft Support have been updated to accommodate these changes. If you have previously applied the mitigation policies, we recommend that you consider updating to the latest policies.

Details

Weakness: CWE-822: Untrusted Pointer Dereference
Publicly disclosed (Microsoft): No
Exploited (Microsoft): No
Known exploited (CISA KEV): Not listed
Published: October 8, 2024
Last revised: November 12, 2024

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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.