{"schema_version":1,"title":"Microsoft MsQuic vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Microsoft MsQuic: 0 in the last 7 days and 3 in the last 90 days, 3 of them critical and 0 exploited in the wild. The most recent, CVE-2026-105794, was published on 6 October 2026. 1 vulnerability in the last four weeks, level on the four before (1). 1 critical against 1.","url":"https://junglewise.ai/threats/technologies/msquic","json_url":"https://junglewise.ai/threats/technologies/msquic.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/msquic","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":0,"all_time":3,"critical":3,"exploited":0,"last_7_days":0,"last_30_days":1,"last_90_days":3,"last_365_days":3},"latest":[{"cve":"CVE-2026-105794","cvss":4,"epss":0.01,"slug":"cve-2026-105794-msquic-is-a-cross-platform-c-implementation-of-the-ietf-quic","title":"Microsoft MsQuic hostname validation bypass","severity":"critical","exploited":false,"published_at":"2026-10-06T15:17:16.26+00:00","url":"https://junglewise.ai/threats/cve-2026-105794-msquic-is-a-cross-platform-c-implementation-of-the-ietf-quic"},{"cve":"CVE-2026-62815","cvss":9.8,"epss":0.0097,"slug":"cve-2026-62815-microsoft-quic-use-after-free-in-path-migration","title":"Microsoft QUIC use-after-free in path migration","severity":"critical","exploited":false,"published_at":"2026-09-08T20:27:02+00:00","url":"https://junglewise.ai/threats/cve-2026-62815-microsoft-quic-use-after-free-in-path-migration"},{"cvss":9.8,"slug":"microsoft-quic-use-after-free-remote-code-execution-bc730249","title":"Microsoft QUIC use-after-free remote code execution","severity":"critical","exploited":false,"published_at":"2026-08-11T18:31:26+00:00","url":"https://junglewise.ai/threats/microsoft-quic-use-after-free-remote-code-execution-bc730249"}],"weekly":[{"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":1,"exploited":0,"vulnerabilities":1},{"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":1,"exploited":0,"vulnerabilities":1},{"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":1,"exploited":0,"vulnerabilities":1},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Microsoft Windows","slug":"windows-","vulnerabilities":1706,"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 11 24h2","slug":"windows-11-24h2","vulnerabilities":486,"url":"https://junglewise.ai/threats/technologies/windows-11-24h2"},{"name":"Microsoft Windows Server 2012","slug":"windows-server-2012","vulnerabilities":473,"url":"https://junglewise.ai/threats/technologies/windows-server-2012"},{"name":"Microsoft Windows Server 2019","slug":"windows-server-2019","vulnerabilities":469,"url":"https://junglewise.ai/threats/technologies/windows-server-2019"},{"name":"Microsoft Windows Server 2022","slug":"windows-server-2022","vulnerabilities":461,"url":"https://junglewise.ai/threats/technologies/windows-server-2022"},{"name":"Microsoft Windows 11 25h2","slug":"windows-11-25h2","vulnerabilities":455,"url":"https://junglewise.ai/threats/technologies/windows-11-25h2"},{"name":"Microsoft Windows Server 2016","slug":"windows-server-2016","vulnerabilities":427,"url":"https://junglewise.ai/threats/technologies/windows-server-2016"},{"name":"Microsoft Windows Server 2025","slug":"windows-server-2025","vulnerabilities":427,"url":"https://junglewise.ai/threats/technologies/windows-server-2025"},{"name":"Microsoft Windows 10 21h2","slug":"windows-10-21h2","vulnerabilities":359,"url":"https://junglewise.ai/threats/technologies/windows-10-21h2"},{"name":"Microsoft Windows 10 22h2","slug":"windows-10-22h2","vulnerabilities":358,"url":"https://junglewise.ai/threats/technologies/windows-10-22h2"}],"technology":{"hub":true,"name":"Microsoft MsQuic","slug":"msquic","vendor":{"hub":true,"name":"Microsoft","slug":"microsoft","url":"https://junglewise.ai/threats/vendors/microsoft"},"aliases":[],"category":"library","description":"MsQuic is a Microsoft implementation of the QUIC network protocol for fast, reliable data transmission.","url":"https://junglewise.ai/threats/technologies/msquic"},"most_severe":[{"cve":"CVE-2026-62815","cvss":9.8,"epss":0.0097,"slug":"cve-2026-62815-microsoft-quic-use-after-free-in-path-migration","title":"Microsoft QUIC use-after-free in path migration","severity":"critical","exploited":false,"published_at":"2026-09-08T20:27:02+00:00","url":"https://junglewise.ai/threats/cve-2026-62815-microsoft-quic-use-after-free-in-path-migration"},{"cvss":9.8,"slug":"microsoft-quic-use-after-free-remote-code-execution-bc730249","title":"Microsoft QUIC use-after-free remote code execution","severity":"critical","exploited":false,"published_at":"2026-08-11T18:31:26+00:00","url":"https://junglewise.ai/threats/microsoft-quic-use-after-free-remote-code-execution-bc730249"},{"cve":"CVE-2026-105794","cvss":4,"epss":0.01,"slug":"cve-2026-105794-msquic-is-a-cross-platform-c-implementation-of-the-ietf-quic","title":"Microsoft MsQuic hostname validation bypass","severity":"critical","exploited":false,"published_at":"2026-10-06T15:17:16.26+00:00","url":"https://junglewise.ai/threats/cve-2026-105794-msquic-is-a-cross-platform-c-implementation-of-the-ietf-quic"}],"generated_at":"2026-10-19T03:07:00.200186+00:00"}