#VU126209 Input validation error in Windows Server - CVE-2026-33826

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Main Vulnerability Database Vulnerabilities #VU126209

#VU126209 Input validation error in Windows Server - CVE-2026-33826

Published: April 15, 2026


Vulnerability identifier: #VU126209
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-33826
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Windows Server
Software vendor:
Microsoft

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in Windows Active Directory. A remote user on the local network can pass specially crafted input to the application and execute arbitrary code on the target system.


Remediation

Install updates from vendor's website.

External links