Missing Authentication for Critical Function in Microsoft Windows and Windows Server - CVE-2026-119824
Published: November 11, 2026
Vulnerability identifier: #VU165249
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-119824
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to tamper with data and potentially compromise the confidentiality and availability of the affected system.
The vulnerability exists due to missing authentication for a critical function in Remote Desktop Client when handling network interactions. A remote attacker can invoke the affected function without authentication, with victim interaction required, to make unauthorized changes and potentially disclose sensitive information or disrupt system availability.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2026-119824
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 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
Windows Server - addressed in versions 2019 10.0.17763.9487, 2022 10.0.20348.5870, 2025 10.0.26100.33730, 2025 10.0.26100.33822
Windows Server - addressed in versions 2019 10.0.17763.9487, 2022 10.0.20348.5870, 2025 10.0.26100.33730, 2025 10.0.26100.33822