by Kastro
Paper/Archive/CVE-2021-26443

CVE-2021-26443

Microsoft Windows 10 Version 1809 — Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability

EPSS 2%CVSS 9.0
critical.is priorityof 100
42
CVSS 9.0 (CNA)9.0 / 10 × 3027.0Not in CISA KEV+300.0EPSS percentile 77.2.772 × 2015.4No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability

Affected

ProductAffectedFixed inSource
Windows 10 Version 180910.0.17763.0 – < 10.0.17763.230010.0.17763.2300CNA
Windows 10 Version 190910.0.0 – < 10.0.18363.191610.0.18363.1916CNA
Windows 10 Version 200410.0.0 – < 10.0.19041.134810.0.19041.1348CNA
Windows 10 Version 21H110.0.0 – < 10.0.19043.134810.0.19043.1348CNA
Windows 11 version 21H210.0.22000.0 – < 10.0.22000.31810.0.22000.318CNA
Windows Server 201910.0.17763.0 – < 10.0.17763.230010.0.17763.2300CNA
Windows Server 2019 (Server Core installation)10.0.17763.0 – < 10.0.17763.230010.0.17763.2300CNA
Windows Server 202210.0.20348.0 – < 10.0.20348.35010.0.20348.350CNA
Windows Server version 200410.0.0 – < 10.0.19041.134810.0.19041.1348CNA
Windows Server version 20H210.0.0 – < 10.0.19041.134810.0.19041.1348CNA

Scores by source

microsoft (CNA)9.0CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2021-26443refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26443