CVE-2023-21819

EUVD-2023-25985
Windows Secure Channel Denial of Service Vulnerability
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
microsoftCNA
7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Base Score
CVSS 3.x
EPSS Score
Percentile: 95%
Affected Products (NVD)
VendorProductVersion
microsoftwindows_10_1809
𝑥
< 10.0.17763.4010
microsoftwindows_10_20h2
𝑥
< 10.0.19042.2604
microsoftwindows_10_21h2
𝑥
< 10.0.19044.2604
microsoftwindows_10_22h2
𝑥
< 10.0.19045.2604
microsoftwindows_11_21h2
𝑥
< 10.0.22000.1574
microsoftwindows_server_2019
-
microsoftwindows_server_2022
-
𝑥
= Vulnerable software versions
Windows Releases
Platform
Version
Windows 10
1809 (arm64, x64, x86)
KB5022840
20H2 (arm64, x86)
KB5022834
21H2 (arm64, x64, x86)
KB5022834
22H2 (arm64, x64, x86)
KB5022834
Windows 11
21H2 (arm64, x64)
KB5022836
Windows Server 2019
Server Core
KB5022840
Standard
KB5022840
Windows Server 2022
Server Core
KB5022921
Standard
KB5022921
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21819
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21819