CVE-2026-33826 HIGH

CVE-2026-33826: Windows Active Directory Remote Code Execution Vulnerability

Vendor Microsoft
Product Windows Server 2012 R2
Weakness CWE-20 · Input validation
Published April 14, 2026
Last update June 1, 2026
View on NVD All CVEs

CVSS base score

8.0/10
Attack vector Adjacent
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

Improper input validation in Windows Active Directory allows an authorized attacker to execute code over an adjacent network.

Key dates

02Disclosure timeline

April 14, 2026 CVE published
June 1, 2026 Record updated