CVE-2026-88102
Microsoft Failover Cluster Remote Code Execution Vulnerability
- Published
- Last modified
- Status
- published
- Known exploitation
- Not listed in CISA KEV
- Fix
- Fixed in 10.0.17763.9376, 10.0.20348.5761, 10.0.26100.33650
- Public exploit
- None on Exploit-DB
CISA SSVC
- Exploitation: none
- Automatable: yes
- Technical impact: total
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Decision points from CISA's Vulnrichment, assessed (SSVC 2.0.3).
SSVC documentationSummary
Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.
Affected versions
- Microsoft Windows Server 2019
From 10.0.17763.0 · fixed in 10.0.17763.9376
- Microsoft Windows Server 2019 (Server Core installation)
From 10.0.17763.0 · fixed in 10.0.17763.9376
- Microsoft Windows Server 2022
From 10.0.20348.0 · fixed in 10.0.20348.5761
- Microsoft Windows Server 2025
From 10.0.26100.0 · fixed in 10.0.26100.33650
- Microsoft Windows Server 2025 (Server Core installation)
From 10.0.26100.0 · fixed in 10.0.26100.33650