CVE-2021-26443
Medium
Elevated severity or exploit probability.
CVSS base
9.0
CRITICAL
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
1.7%
75.9th percentile
CISA KEV
Not listed
Weakness / dates
—
Published 2021-11-10 · modified 2026-08-19
Description
Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability