{"schema_version":1,"title":"Microsoft Windows (Schannel) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Microsoft Windows (Schannel): 0 in the last 7 days and 3 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-85818, was published on 13 October 2026. 1 vulnerability in the last four weeks, up from none in the four before. 1 critical against 0.","url":"https://junglewise.ai/threats/technologies/windows-schannel","json_url":"https://junglewise.ai/threats/technologies/windows-schannel.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-schannel","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":1,"all_time":3,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":3,"last_365_days":3},"latest":[{"cve":"CVE-2026-85818","cvss":9,"epss":0.0042,"slug":"cve-2026-85818-improper-verification-of-cryptographic-signature-in-windows","title":"Windows Schannel cryptographic signature verification bypass","severity":"critical","exploited":false,"published_at":"2026-10-13T19:21:06.667+00:00","url":"https://junglewise.ai/threats/cve-2026-85818-improper-verification-of-cryptographic-signature-in-windows"},{"cve":"CVE-2026-72940","cvss":8.8,"epss":0.0082,"slug":"cve-2026-72940-microsoft-windows-schannel-heap-buffer-overflow","title":"Microsoft Windows Schannel heap buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:18.96+00:00","url":"https://junglewise.ai/threats/cve-2026-72940-microsoft-windows-schannel-heap-buffer-overflow"},{"cve":"CVE-2026-70575","cvss":5.3,"epss":0.0095,"slug":"cve-2026-70575-microsoft-windows-schannel-null-pointer-dereference","title":"Microsoft Windows Schannel null pointer dereference","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:10.433+00:00","url":"https://junglewise.ai/threats/cve-2026-70575-microsoft-windows-schannel-null-pointer-dereference"}],"weekly":[{"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":2},{"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},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":1,"exploited":0,"vulnerabilities":1},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Microsoft Windows","slug":"windows","vulnerabilities":2362,"url":"https://junglewise.ai/threats/technologies/windows"},{"name":"Microsoft Windows 10","slug":"windows-10","vulnerabilities":589,"url":"https://junglewise.ai/threats/technologies/windows-10"},{"name":"Microsoft Windows 11 24h2","slug":"windows-11-24h2","vulnerabilities":565,"url":"https://junglewise.ai/threats/technologies/windows-11-24h2"},{"name":"Microsoft Windows 11 25h2","slug":"windows-11-25h2","vulnerabilities":534,"url":"https://junglewise.ai/threats/technologies/windows-11-25h2"},{"name":"Microsoft Windows Server 2025","slug":"windows-server-2025","vulnerabilities":534,"url":"https://junglewise.ai/threats/technologies/windows-server-2025"},{"name":"Microsoft Windows Server 2022","slug":"windows-server-2022","vulnerabilities":528,"url":"https://junglewise.ai/threats/technologies/windows-server-2022"},{"name":"Microsoft Windows Server 2019","slug":"windows-server-2019","vulnerabilities":521,"url":"https://junglewise.ai/threats/technologies/windows-server-2019"},{"name":"Microsoft Windows Server 2012","slug":"windows-server-2012","vulnerabilities":517,"url":"https://junglewise.ai/threats/technologies/windows-server-2012"},{"name":"Microsoft Windows 11","slug":"windows-11","vulnerabilities":494,"url":"https://junglewise.ai/threats/technologies/windows-11"},{"name":"Microsoft Windows Server 2016","slug":"windows-server-2016","vulnerabilities":476,"url":"https://junglewise.ai/threats/technologies/windows-server-2016"},{"name":"Microsoft Windows 10 1809","slug":"windows-10-1809","vulnerabilities":380,"url":"https://junglewise.ai/threats/technologies/windows-10-1809"},{"name":"Microsoft Windows 10 21h2","slug":"windows-10-21h2","vulnerabilities":373,"url":"https://junglewise.ai/threats/technologies/windows-10-21h2"}],"technology":{"hub":true,"name":"Microsoft Windows (Schannel)","slug":"windows-schannel","vendor":{"hub":true,"name":"Microsoft","slug":"microsoft","url":"https://junglewise.ai/threats/vendors/microsoft"},"aliases":[],"category":"os","description":"Windows Secure Channel (Schannel) cryptographic protocol provider for TLS/SSL communications.","url":"https://junglewise.ai/threats/technologies/windows-schannel"},"most_severe":[{"cve":"CVE-2026-85818","cvss":9,"epss":0.0042,"slug":"cve-2026-85818-improper-verification-of-cryptographic-signature-in-windows","title":"Windows Schannel cryptographic signature verification bypass","severity":"critical","exploited":false,"published_at":"2026-10-13T19:21:06.667+00:00","url":"https://junglewise.ai/threats/cve-2026-85818-improper-verification-of-cryptographic-signature-in-windows"},{"cve":"CVE-2026-72940","cvss":8.8,"epss":0.0082,"slug":"cve-2026-72940-microsoft-windows-schannel-heap-buffer-overflow","title":"Microsoft Windows Schannel heap buffer overflow","severity":"high","exploited":false,"published_at":"2026-09-08T18:20:18.96+00:00","url":"https://junglewise.ai/threats/cve-2026-72940-microsoft-windows-schannel-heap-buffer-overflow"},{"cve":"CVE-2026-70575","cvss":5.3,"epss":0.0095,"slug":"cve-2026-70575-microsoft-windows-schannel-null-pointer-dereference","title":"Microsoft Windows Schannel null pointer dereference","severity":"medium","exploited":false,"published_at":"2026-09-08T18:20:10.433+00:00","url":"https://junglewise.ai/threats/cve-2026-70575-microsoft-windows-schannel-null-pointer-dereference"}],"generated_at":"2026-11-13T03:07:00.155039+00:00"}