by Kastro
Paper/Archive/CVE-2026-73010

CVE-2026-73010

Microsoft Windows 10 Version 1809 — Microsoft Failover Cluster Remote Code Execution Vulnerability

EPSS 1.0%CVSS 9.8
critical.is priorityof 100
42
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 62.0.620 × 2012.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Use after free in Windows Failover Cluster allows an unauthorized attacker to execute code over a network.

Affected

ProductAffectedFixed inSource
Windows 10 Version 180910.0.17763.0 – < 10.0.17763.924510.0.17763.9245CNA
Windows Server 201910.0.17763.0 – < 10.0.17763.924510.0.17763.9245CNA
Windows Server 2019 (Server Core installation)10.0.17763.0 – < 10.0.17763.924510.0.17763.9245CNA
Windows Server 202210.0.20348.0 – < 10.0.20348.562210.0.20348.5622CNA
Windows Server 202510.0.26100.0 – < 10.0.26100.3343810.0.26100.33438CNA
Windows Server 2025 (Server Core installation)10.0.26100.0 – < 10.0.26100.3343810.0.26100.33438CNA

Scores by source

microsoft (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-73010