CVE-2021-26443

EUVD-2021-13248
Microsoft Virtual Machine Bus (VMBus) Remote Code Execution Vulnerability
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9 CRITICAL
ADJACENT_NETWORK
LOW
LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
microsoftCNA
9 CRITICAL
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
Base Score
CVSS 3.x
EPSS Score
Percentile: 67%
Affected Products (NVD)
VendorProductVersion
microsoftwindows_11
-
microsoftwindows_server_2019
-
microsoftwindows_server_2022
-
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows 10
1809 (x64)
KB5007206
1909 (x64)
KB5007189
2004 (x64)
KB5007186
21H1 (x64)
KB5007186
Windows 11
21H2 (x64)
KB5007215
Windows Server
2004 Server Core
KB5007186
20H2 Server Core
KB5007186
Windows Server 2019
Server Core
KB5007206
Standard
KB5007206
Windows Server 2022
Server Core
KB5007205
Standard
KB5007205
References
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26443
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26443