{"schema_version":1,"title":"Microsoft Windows Server Update Service vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Microsoft Windows Server Update Service: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-83499, was published on 13 October 2026. 3 vulnerabilities in the last four weeks, up from none in the four before.","url":"https://junglewise.ai/threats/technologies/windows-server-update-service","json_url":"https://junglewise.ai/threats/technologies/windows-server-update-service.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-server-update-service","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":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":3,"last_365_days":3},"latest":[{"cve":"CVE-2026-83499","cvss":7.8,"epss":0.003,"slug":"cve-2026-83499-insufficient-granularity-of-access-control-in-windows-server","title":"Microsoft Windows Server Update Service privilege escalation","severity":"high","exploited":false,"published_at":"2026-10-13T19:19:55.003+00:00","url":"https://junglewise.ai/threats/cve-2026-83499-insufficient-granularity-of-access-control-in-windows-server"},{"cve":"CVE-2026-81969","cvss":7.8,"epss":0.0035,"slug":"cve-2026-81969-insufficient-granularity-of-access-control-in-windows-server","title":"Microsoft Windows Server Update Service privilege escalation","severity":"high","exploited":false,"published_at":"2026-10-13T19:19:54.677+00:00","url":"https://junglewise.ai/threats/cve-2026-81969-insufficient-granularity-of-access-control-in-windows-server"},{"cve":"CVE-2026-105009","cvss":7.5,"epss":0.0029,"slug":"cve-2026-105009-incorrect-default-permissions-in-windows-server-update-service","title":"Windows Server Update Service privilege escalation via incorrect default permissions","severity":"high","exploited":false,"published_at":"2026-10-13T19:17:57.277+00:00","url":"https://junglewise.ai/threats/cve-2026-105009-incorrect-default-permissions-in-windows-server-update-service"}],"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":0,"exploited":0,"vulnerabilities":3},{"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 Server Update Service","slug":"windows-server-update-service","vendor":{"hub":true,"name":"Microsoft","slug":"microsoft","url":"https://junglewise.ai/threats/vendors/microsoft"},"aliases":[],"category":"service","description":"Microsoft service that manages and distributes software updates to Windows systems across a network.","url":"https://junglewise.ai/threats/technologies/windows-server-update-service"},"most_severe":[{"cve":"CVE-2026-81969","cvss":7.8,"epss":0.0035,"slug":"cve-2026-81969-insufficient-granularity-of-access-control-in-windows-server","title":"Microsoft Windows Server Update Service privilege escalation","severity":"high","exploited":false,"published_at":"2026-10-13T19:19:54.677+00:00","url":"https://junglewise.ai/threats/cve-2026-81969-insufficient-granularity-of-access-control-in-windows-server"},{"cve":"CVE-2026-83499","cvss":7.8,"epss":0.003,"slug":"cve-2026-83499-insufficient-granularity-of-access-control-in-windows-server","title":"Microsoft Windows Server Update Service privilege escalation","severity":"high","exploited":false,"published_at":"2026-10-13T19:19:55.003+00:00","url":"https://junglewise.ai/threats/cve-2026-83499-insufficient-granularity-of-access-control-in-windows-server"},{"cve":"CVE-2026-105009","cvss":7.5,"epss":0.0029,"slug":"cve-2026-105009-incorrect-default-permissions-in-windows-server-update-service","title":"Windows Server Update Service privilege escalation via incorrect default permissions","severity":"high","exploited":false,"published_at":"2026-10-13T19:17:57.277+00:00","url":"https://junglewise.ai/threats/cve-2026-105009-incorrect-default-permissions-in-windows-server-update-service"}],"generated_at":"2026-11-13T03:07:00.155039+00:00"}