Improper Certificate Validation in Microsoft Windows and Windows Server - CVE-2024-43550

Vulnerability identifier: #VU98250

CSH Severity: Medium

CVSS v4: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-43550

CWE-ID: CWE-295

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper certificate validation in Windows Secure Channel. A remote attacker can gain access to sensitive information on the system.

Microsoft Windows
Windows Server

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19044.5011, 10 22H2 10.0.19045.5011, 10 1507 10.0.10240.20796, 10 1607 10.0.14393.7428, 10 1809 10.0.17763.6414, 11 21H2 10.0.22000.3260, 11 22H2 10.0.22621.4317, 11 23H2 10.0.22631.4317, 11 24H2 10.0.26100.2033
Windows Server - addressed in versions 2012 R2 6.3.9600.22221, 2012 6.2.9200.25118, 2022 23H2 10.0.25398.1189, 2022 10.0.20348.2762

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43550

• Improper Certificate Validation in Microsoft Windows Secure Channel