Untrusted search path in Microsoft Windows and Windows Server - CVE-2026-119839
Published: November 11, 2026
Vulnerability identifier: #VU165272
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-2026-119839
CWE-ID: CWE-426
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code with the privileges of the user account or service account running the affected process.
The vulnerability exists due to an untrusted search path in Windows Remote Desktop Client when exchanging clipboard data after opening a connection from a network share with clipboard redirection enabled. A remote attacker can place specially crafted files on the share and convince a user to open a Remote Desktop connection from that share to execute code with the permissions of the affected process.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2026-119839
Install security update from vendor's website.
Microsoft Windows - addressed in versions 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 2025 10.0.26100.33730, 2025 10.0.26100.33822
Windows Server - addressed in versions 2025 10.0.26100.33730, 2025 10.0.26100.33822