{"schema_version":1,"title":"Microsoft QUIC vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Microsoft QUIC: 2 in the last 7 days and 4 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-88236, was published on 10 November 2026. 2 vulnerabilities in the last four weeks, up from none in the four before. 1 critical against 0.","url":"https://junglewise.ai/threats/technologies/microsoft-quic","json_url":"https://junglewise.ai/threats/technologies/microsoft-quic.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/microsoft-quic","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":3,"all_time":4,"critical":1,"exploited":0,"last_7_days":2,"last_30_days":2,"last_90_days":4,"last_365_days":4},"latest":[{"cve":"CVE-2026-88236","cvss":7.5,"slug":"cve-2026-88236-null-pointer-dereference-in-microsoft-quic-allows-an-unauthorized","title":"Microsoft QUIC null pointer dereference DoS","severity":"high","exploited":false,"published_at":"2026-11-10T19:21:32.55+00:00","url":"https://junglewise.ai/threats/cve-2026-88236-null-pointer-dereference-in-microsoft-quic-allows-an-unauthorized"},{"cve":"CVE-2026-105512","cvss":7.5,"slug":"cve-2026-105512-integer-underflow-wrap-or-wraparound-in-microsoft-quic-allows-an","title":"Microsoft QUIC integer underflow denial of service","severity":"high","exploited":false,"published_at":"2026-11-10T19:17:50.283+00:00","url":"https://junglewise.ai/threats/cve-2026-105512-integer-underflow-wrap-or-wraparound-in-microsoft-quic-allows-an"},{"cve":"CVE-2026-103577","cvss":7.5,"epss":0.0052,"slug":"cve-2026-103577-insecure-default-variable-initialization-in-microsoft-quic","title":"Microsoft QUIC insecure default variable initialization","severity":"high","exploited":false,"published_at":"2026-10-13T19:17:53.723+00:00","url":"https://junglewise.ai/threats/cve-2026-103577-insecure-default-variable-initialization-in-microsoft-quic"},{"cve":"CVE-2026-100219","cvss":9.8,"epss":0.01,"slug":"cve-2026-100219-use-after-free-in-microsoft-quic-allows-an-unauthorized-attacker","title":"Microsoft QUIC use-after-free remote code execution","severity":"critical","exploited":false,"published_at":"2026-10-13T19:17:42.163+00:00","url":"https://junglewise.ai/threats/cve-2026-100219-use-after-free-in-microsoft-quic-allows-an-unauthorized-attacker"}],"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":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},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":1,"exploited":0,"vulnerabilities":2},{"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":2}],"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 QUIC","slug":"microsoft-quic","vendor":{"hub":true,"name":"Microsoft","slug":"microsoft","url":"https://junglewise.ai/threats/vendors/microsoft"},"aliases":[],"category":"library","homepage":"https://www.microsoft.com","description":"Microsoft implementation of the QUIC network protocol for improved transport performance.","url":"https://junglewise.ai/threats/technologies/microsoft-quic"},"most_severe":[{"cve":"CVE-2026-100219","cvss":9.8,"epss":0.01,"slug":"cve-2026-100219-use-after-free-in-microsoft-quic-allows-an-unauthorized-attacker","title":"Microsoft QUIC use-after-free remote code execution","severity":"critical","exploited":false,"published_at":"2026-10-13T19:17:42.163+00:00","url":"https://junglewise.ai/threats/cve-2026-100219-use-after-free-in-microsoft-quic-allows-an-unauthorized-attacker"},{"cve":"CVE-2026-103577","cvss":7.5,"epss":0.0052,"slug":"cve-2026-103577-insecure-default-variable-initialization-in-microsoft-quic","title":"Microsoft QUIC insecure default variable initialization","severity":"high","exploited":false,"published_at":"2026-10-13T19:17:53.723+00:00","url":"https://junglewise.ai/threats/cve-2026-103577-insecure-default-variable-initialization-in-microsoft-quic"},{"cve":"CVE-2026-88236","cvss":7.5,"slug":"cve-2026-88236-null-pointer-dereference-in-microsoft-quic-allows-an-unauthorized","title":"Microsoft QUIC null pointer dereference DoS","severity":"high","exploited":false,"published_at":"2026-11-10T19:21:32.55+00:00","url":"https://junglewise.ai/threats/cve-2026-88236-null-pointer-dereference-in-microsoft-quic-allows-an-unauthorized"},{"cve":"CVE-2026-105512","cvss":7.5,"slug":"cve-2026-105512-integer-underflow-wrap-or-wraparound-in-microsoft-quic-allows-an","title":"Microsoft QUIC integer underflow denial of service","severity":"high","exploited":false,"published_at":"2026-11-10T19:17:50.283+00:00","url":"https://junglewise.ai/threats/cve-2026-105512-integer-underflow-wrap-or-wraparound-in-microsoft-quic-allows-an"}],"generated_at":"2026-11-13T03:07:00.155039+00:00"}