{"id":"CVE-2022-40733","url":"https://www.cyber-defence.io/tools/cve/CVE-2022-40733","generatedAt":"2026-10-27T19:39:49.224Z","title":"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.","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.","published":"2024-12-18T23:15:07.000Z","lastModified":"2026-06-17T05:01:57.000Z","status":"Analyzed","sourceIdentifier":"talos-cna@cisco.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["microsoft/windows 11 21h2","microsoft/windows server 2022"],"epss":{"score":0.00828,"percentile":0.57231,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.83%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2022-1515","tags":["Exploit","Third Party Advisory"],"source":"talos-cna@cisco.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-40733","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}