Technology · Microsoft
Microsoft Windows Server Update Service vulnerabilities
Updated . Rebuilt every hour.
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.
- Last 7 days
- 0
- Last 90 days
- 3
- Critical, all time
- 0
- Exploited in the wild
- 0
About Microsoft Windows Server Update Service
Microsoft service that manages and distributes software updates to Windows systems across a network.
Latest Microsoft Windows Server Update Service vulnerabilities
- CVE-2026-83499: Microsoft Windows Server Update Service privilege escalationhighCVSS 7.8EPSS 0.3%
- CVE-2026-81969: Microsoft Windows Server Update Service privilege escalationhighCVSS 7.8EPSS 0.4%
- CVE-2026-105009: Windows Server Update Service privilege escalation via incorrect default permissionshighCVSS 7.5EPSS 0.3%
Most severe Microsoft Windows Server Update Service vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-81969: Microsoft Windows Server Update Service privilege escalationhighCVSS 7.8EPSS 0.4%
- CVE-2026-83499: Microsoft Windows Server Update Service privilege escalationhighCVSS 7.8EPSS 0.3%
- CVE-2026-105009: Windows Server Update Service privilege escalation via incorrect default permissionshighCVSS 7.5EPSS 0.3%
Vulnerabilities per week
3 vulnerabilities in the last four weeks, up from none in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 3 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Microsoft Windows Server Update Service vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/windows-server-update-service)<a href="https://junglewise.ai/threats/technologies/windows-server-update-service"><img src="https://junglewise.ai/threats/technologies/windows-server-update-service/badge.svg" alt="Microsoft Windows Server Update Service vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/windows-server-update-service.json, and this page as text at https://junglewise.ai/threats/technologies/windows-server-update-service.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Microsoft Windows Server Update Service vulnerabilities", https://junglewise.ai/threats/technologies/windows-server-update-service, 13 November 2026.