Memory leak in Microsoft Windows and Windows Server - CVE-2025-29828

Vulnerability identifier: #VU110755

CSH Severity: High

CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-29828

CWE-ID: CWE-401

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due memory leak in Windows Schannel. A remote attacker can force the application to leak memory and execute arbitrary code on the target system.

Microsoft Windows
Windows Server

Install updates from vendor's website.

Microsoft Windows - addressed in versions 11 22H2 10.0.22621.5472, 11 23H2 10.0.22631.5472, 11 24H2 10.0.26100.4270, 11 24H2 10.0.26100.4349
Windows Server - addressed in versions 2022 23H2 10.0.25398.1665, 2022 10.0.20348.3745, 2022 10.0.20348.3807, 2025 10.0.26100.4270, 2025 10.0.26100.4349

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29828

• Remote code execution in Microsoft Windows Schannel