CVE-2026-72989 PUBLISHED

Windows Failover Cluster Information Disclosure Vulnerability

Assigner: microsoft
Reserved: 10.08.2026 Published: 08.09.2026 Updated: 08.09.2026

Use of uninitialized resource in Windows Failover Cluster allows an unauthorized attacker to disclose information over a network.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CVSS Score: 7.5

Product Status

Vendor Microsoft
Product Windows 10 Version 1809
Versions
  • affected from 10.0.17763.0 to 10.0.17763.9245 (excl.)
Vendor Microsoft
Product Windows Server 2019
Versions
  • affected from 10.0.17763.0 to 10.0.17763.9245 (excl.)
Vendor Microsoft
Product Windows Server 2019 (Server Core installation)
Versions
  • affected from 10.0.17763.0 to 10.0.17763.9245 (excl.)
Vendor Microsoft
Product Windows Server 2022
Versions
  • affected from 10.0.20348.0 to 10.0.20348.5622 (excl.)
Vendor Microsoft
Product Windows Server 2025
Versions
  • affected from 10.0.26100.0 to 10.0.26100.33438 (excl.)
Vendor Microsoft
Product Windows Server 2025 (Server Core installation)
Versions
  • affected from 10.0.26100.0 to 10.0.26100.33438 (excl.)

References

Problem Types