How severe is CVE-2022-40732?

CVE-2022-40732 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-40732 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40732?

CVE-2022-40732 primarily affects Microsoft Windows 11 21h2. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-40732?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2022-40732 have an EU (EUVD) identifier?

Yes. CVE-2022-40732 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-44001.

When was CVE-2022-40732 published?

CVE-2022-40732 was published on 2024-12-18 and last updated on 2026-06-17.

CVE-2022-40732

CVE-2022-40732 is a medium-severity vulnerability in Microsoft Windows 11 21h2 with a CVSS 3.x base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.0)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2022-44001
Weakness: CWE-476
Affected product: Microsoft Windows 11 21h2
Published: 2024-12-18
Last modified: 2026-06-17

Description

An access violation vulnerability exists in the DirectComposition functionality win32kbase.sys driver version 10.0.22000.593 as part of Windows 11 version 22000.593 and version 10.0.20348.643 as part of Windows Server 2022 version 20348.643. A specially-crafted set of syscalls can lead to a reboot. An unprivileged user can run specially-crafted code to trigger Denial Of Service.

Frequently asked questions

What is CVE-2022-40732?: An access violation vulnerability exists in the DirectComposition functionality win32kbase.sys driver version 10.0.22000.593 as part of Windows 11 version 22000.593 and version 10.0.20348.643 as part of Windows Server 2022 version 20348.643. A specially-crafted set of syscalls can lead to a reboot. An unprivileged user can run specially-crafted code to trigger Denial Of Service.
How severe is CVE-2022-40732?: CVE-2022-40732 has a CVSS 3.x base score of 5.0, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-40732 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40732?: CVE-2022-40732 primarily affects Microsoft Windows 11 21h2. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-40732?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2022-40732 have an EU (EUVD) identifier?: Yes. CVE-2022-40732 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-44001.
When was CVE-2022-40732 published?: CVE-2022-40732 was published on 2024-12-18 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2022-1514

Affected products (2)

cpe:2.3:o:microsoft:windows_11_21h2:10.0.22000.593:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.643:*:*:*:*:*:*:*

More vulnerabilities in Microsoft Windows 11 21h2

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