PT-2024-11633 · Microsoft · Windows 11+1

Jaewon Min · Published 2024-12-18 · Updated 2024-12-19 · CVE-2022-40732

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Windows 11 version 10.0.22000.593 Windows Server 2022 version 10.0.20348.643

Description An access violation issue exists in the DirectComposition functionality of the win32kbase.sys driver. A specially-crafted set of syscalls can lead to a reboot. An unprivileged user can run specially-crafted code to trigger a Denial Of Service.

Recommendations For Windows 11 version 10.0.22000.593, update to a version that includes a fix for this issue. For Windows Server 2022 version 10.0.20348.643, update to a version that includes a fix for this issue. As a temporary workaround, consider restricting access to the DirectComposition functionality until a patch is available.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2022-40732

Affected Products

Windows 11

Windows Server 2022

References · 6

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2022-1514 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-40732 · Security Note
• https://osv.dev/vulnerability/CVE-2022-40732 · Vendor Advisory
• https://t.me/cvedetector/13276 · Telegram Post
• https://twitter.com/CVEnew/status/1869515636369707183 · Twitter Post
• https://t.me/cvenotify/104830 · Telegram Post