Vulnerability in Microsoft Windows 10 Version 1809
CVE-2021-26443
Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability
EPSS: 0.005 (68.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C.
Affected products
- Microsoft Windows 10 Version 1809 — versions 10.0.0
- Microsoft Windows 10 Version 1909 — versions 10.0.0
- Microsoft Windows 10 Version 2004 — versions 10.0.0
- Microsoft Windows 10 Version 21h1 — versions 10.0.0
- Microsoft Windows 11 Version 21h2 — versions 10.0.0
- Microsoft Windows Server 2019 — versions 10.0.0
- Microsoft Windows Server 2019 (Server Core Installation) — versions 10.0.0
- Microsoft Windows Server 2022 — versions 10.0.0
- Microsoft Windows Server Version 2004 — versions 10.0.0
- Microsoft Windows Server Version 20h2 — versions 10.0.0
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26443 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-26443?
- CVE-2021-26443 is a critical-severity vulnerability in Microsoft Windows 10 Version 1809. CVSS score: 9.0/10. Published 2021-11-10.
- How severe is CVE-2021-26443?
- Critical severity. CVSS v3 base score is 9.0 out of 10.