Status: UPDATED | Advisory ID: CVE-2026-72989
| CVE | CVE-2026-72989 |
| CVSS Score / Version | 7.5 (High) / CVSS v3.1 |
| Updated | 2026-09-21 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is none; availability impact is none. |
| Affected products | see table below |
| Classified as | CWE-908 (Use of Uninitialized Resource) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Microsoft | Windows Server 2025 | ||
| Microsoft | Windows 10 (version 1809) | ||
| Microsoft | Windows Server 2019 | ||
| Microsoft | Windows Server 2022 | ||
| Microsoft | Windows 10 Version 1809 | ||
| Microsoft | Windows Server 2019 (Server Core installation) | ||
| Microsoft | Windows Server 2025 (Server Core installation) |
| Subsystems | Core Infrastructure, EWS Workstation Delivery/Virtualization |
| Sectors | All Sectors |
Use of uninitialized resource in Windows Failover Cluster allows an unauthorized attacker to disclose information over a network.
Monitor Microsoft's web page for any future patch releases. See vendor advisory link below.