Microsoft Security Response CenterCVE-2026-69415

Windows DHCP Server Elevation of Privilege Vulnerability

Severity not listedVendor CVSS 6.8 / 10 1 CVE Published Sep 8, 2026 at 7:00 AM UTC

Summary

Missing authentication for critical function in Windows DHCP Server allows an authorized attacker to elevate privileges over a network.

A separate affected-products list was not included in the collected bulletin.

Install KB5122876. Install KB5122882. Install KB5122871. Install KB5123099. Install KB5123065. Install KB5123066.

Update history

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

Oct 27, 2026 at 9:40 PM UTC
- Severity changed from High to Unknown.
- Removed affected products: Windows 10 Version 1607 for 32-bit Systems, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems, Windows Server 2012.
- Removed fixed versions: 6.2.9200.26349, 6.3.9600.23398, 10.0.14393.9512, 10.0.17763.9245, 10.0.20348.5622.
Sep 27, 2026 at 11:11 PM UTC
- Added fixed versions: 6.3.9600.23398.
- Removed fixed versions: 6.3.9600.23397.

Sep 8, 2026 at 7:00 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Sep 8, 2026 at 7:15 PM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Oct 28, 2026 at 3:45 AM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Details collected from Microsoft Security Response Center.

Official bulletin How SecurityAlert builds this record

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