{"schema_version":1,"title":"Microsoft Windows 11 26h1 vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Microsoft Windows 11 26h1: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-40369, was published on 12 May 2026.","url":"https://junglewise.ai/threats/technologies/windows-11-26h1","json_url":"https://junglewise.ai/threats/technologies/windows-11-26h1.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/windows-11-26h1","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":4},"latest":[{"cve":"CVE-2026-40369","cvss":7.8,"epss":0.0001,"slug":"cve-2026-40369-microsoft-windows-kernel-heap-overflow-privilege-escalation","title":"Microsoft Windows Kernel heap overflow privilege escalation","severity":"high","exploited":false,"published_at":"2026-05-12T18:17:16.023+00:00","url":"https://junglewise.ai/threats/cve-2026-40369-microsoft-windows-kernel-heap-overflow-privilege-escalation"},{"cve":"CVE-2026-33840","cvss":7.8,"epss":0.0007,"slug":"cve-2026-33840-microsoft-windows-win32k-race-condition-in-grfx","title":"Microsoft Windows Win32K race condition in GRFX","severity":"high","exploited":false,"published_at":"2026-05-12T18:17:06.163+00:00","url":"https://junglewise.ai/threats/cve-2026-33840-microsoft-windows-win32k-race-condition-in-grfx"},{"cve":"CVE-2026-32223","cvss":6.8,"epss":0.001,"slug":"cve-2026-32223-microsoft-windows-usb-print-driver-heap-overflow-privilege","title":"Microsoft Windows USB Print Driver heap overflow privilege escalation","severity":"medium","exploited":false,"published_at":"2026-04-14T18:17:30.49+00:00","url":"https://junglewise.ai/threats/cve-2026-32223-microsoft-windows-usb-print-driver-heap-overflow-privilege"},{"cve":"CVE-2026-32152","cvss":7.8,"epss":0.0006,"slug":"cve-2026-32152-microsoft-windows-desktop-window-manager-use-after-free-privilege","title":"Microsoft Windows Desktop Window Manager use after free privilege escalation","severity":"high","exploited":false,"published_at":"2026-04-14T18:17:15.71+00:00","url":"https://junglewise.ai/threats/cve-2026-32152-microsoft-windows-desktop-window-manager-use-after-free-privilege"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Microsoft Windows","slug":"windows-","vulnerabilities":977,"url":"https://junglewise.ai/threats/technologies/windows-"},{"name":"Microsoft Windows 10","slug":"windows-10","vulnerabilities":588,"url":"https://junglewise.ai/threats/technologies/windows-10"},{"name":"Microsoft Windows 11","slug":"windows-11","vulnerabilities":493,"url":"https://junglewise.ai/threats/technologies/windows-11"},{"name":"Microsoft Windows Server 2012","slug":"windows-server-2012","vulnerabilities":293,"url":"https://junglewise.ai/threats/technologies/windows-server-2012"},{"name":"Microsoft Windows Server 2016","slug":"windows-server-2016","vulnerabilities":213,"url":"https://junglewise.ai/threats/technologies/windows-server-2016"},{"name":"Microsoft Windows Server 2019","slug":"windows-server-2019","vulnerabilities":211,"url":"https://junglewise.ai/threats/technologies/windows-server-2019"},{"name":"Microsoft Windows 11 24h2","slug":"windows-11-24h2","vulnerabilities":192,"url":"https://junglewise.ai/threats/technologies/windows-11-24h2"},{"name":"Microsoft Windows Server 2022","slug":"windows-server-2022","vulnerabilities":178,"url":"https://junglewise.ai/threats/technologies/windows-server-2022"},{"name":"Microsoft Edge","slug":"edge-chromium-based","vulnerabilities":168,"url":"https://junglewise.ai/threats/technologies/edge-chromium-based"},{"name":"Microsoft Windows 11 25h2","slug":"windows-11-25h2","vulnerabilities":161,"url":"https://junglewise.ai/threats/technologies/windows-11-25h2"},{"name":"Microsoft Windows 11 Version 26H1","slug":"windows-11-version-26h1","vulnerabilities":135,"url":"https://junglewise.ai/threats/technologies/windows-11-version-26h1"},{"name":"Microsoft Windows Server 2025","slug":"windows-server-2025","vulnerabilities":124,"url":"https://junglewise.ai/threats/technologies/windows-server-2025"}],"technology":{"hub":true,"name":"Microsoft Windows 11 26h1","slug":"windows-11-26h1","vendor":{"name":"Microsoft","slug":"microsoft","url":"https://junglewise.ai/threats/vendors/microsoft"},"aliases":[],"homepage":"https://www.microsoft.com/windows/windows-11","repo_url":"https://www.microsoft.com/windows/","description":"A version of the Microsoft Windows NT operating system for personal computers and workstations.","url":"https://junglewise.ai/threats/technologies/windows-11-26h1"},"most_severe":[{"cve":"CVE-2026-33840","cvss":7.8,"epss":0.0007,"slug":"cve-2026-33840-microsoft-windows-win32k-race-condition-in-grfx","title":"Microsoft Windows Win32K race condition in GRFX","severity":"high","exploited":false,"published_at":"2026-05-12T18:17:06.163+00:00","url":"https://junglewise.ai/threats/cve-2026-33840-microsoft-windows-win32k-race-condition-in-grfx"},{"cve":"CVE-2026-32152","cvss":7.8,"epss":0.0006,"slug":"cve-2026-32152-microsoft-windows-desktop-window-manager-use-after-free-privilege","title":"Microsoft Windows Desktop Window Manager use after free privilege escalation","severity":"high","exploited":false,"published_at":"2026-04-14T18:17:15.71+00:00","url":"https://junglewise.ai/threats/cve-2026-32152-microsoft-windows-desktop-window-manager-use-after-free-privilege"},{"cve":"CVE-2026-40369","cvss":7.8,"epss":0.0001,"slug":"cve-2026-40369-microsoft-windows-kernel-heap-overflow-privilege-escalation","title":"Microsoft Windows Kernel heap overflow privilege escalation","severity":"high","exploited":false,"published_at":"2026-05-12T18:17:16.023+00:00","url":"https://junglewise.ai/threats/cve-2026-40369-microsoft-windows-kernel-heap-overflow-privilege-escalation"},{"cve":"CVE-2026-32223","cvss":6.8,"epss":0.001,"slug":"cve-2026-32223-microsoft-windows-usb-print-driver-heap-overflow-privilege","title":"Microsoft Windows USB Print Driver heap overflow privilege escalation","severity":"medium","exploited":false,"published_at":"2026-04-14T18:17:30.49+00:00","url":"https://junglewise.ai/threats/cve-2026-32223-microsoft-windows-usb-print-driver-heap-overflow-privilege"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}