NULL pointer dereference in Microsoft products - CVE-2026-119932

Vulnerability identifier: #VU165350

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-119932

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause a denial of service in Windows Remote Desktop.

The vulnerability exists due to a null pointer dereference in Windows Remote Desktop when handling network traffic. A remote attacker can send specially crafted network traffic to trigger the null pointer dereference and cause a denial of service.

Microsoft Windows
Windows Server
Microsoft .NET Framework

Install security update from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19044.7846, 10 22H2 10.0.19045.7846, 10 1607 10.0.14393.9688, 10 1809 10.0.17763.9487, 11 23H2 10.0.22631.7711, 11 24H2 10.0.26100.9911, 11 24H2 10.0.26100.9974, 11 25H2 10.0.26200.9911, 11 25H2 10.0.26200.9974, 11 26H1 10.0.28000.3501
Microsoft .NET Framework - update to 2.0.1489.0
Windows Server - addressed in versions 2016 10.0.14393.9688, 2019 10.0.17763.9487, 2022 10.0.20348.5870, 2025 10.0.26100.33730, 2025 10.0.26100.33822

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-119932
• https://support.microsoft.com/help/5131291

• Multiple vulnerabilities in Microsoft Windows