PT-2024-11634 · Microsoft · Windows 11+1

Jaewon Min · Published 2024-12-18 · Updated 2024-12-19 · CVE-2022-40733

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/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 vulnerability 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 Denial Of Service.

Recommendations For Windows 11 version 10.0.22000.593, update to a newer version that contains a fix for this issue. For Windows Server 2022 version 10.0.20348.643, update to a newer version that contains a fix for this issue. As a temporary workaround, consider restricting access to the win32kbase.sys driver to minimize the risk of exploitation.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2022-40733

Affected Products

Windows 11

Windows Server 2022

References · 8

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2022-1515 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-40733 · Security Note
• https://osv.dev/vulnerability/CVE-2022-40733 · Vendor Advisory
• https://t.me/cvedetector/13277 · Telegram Post
• https://t.me/cvenotify/104831 · Telegram Post
• https://twitter.com/transilienceai/status/1869611908279443756 · Twitter Post
• https://twitter.com/CVEnew/status/1869515635405033931 · Twitter Post
• https://twitter.com/transilienceai/status/1869611901547638893 · Twitter Post