CVE-2026-23656 MEDIUM

CVE-2026-23656: Windows App Installer Spoofing Vulnerability

Vendor Microsoft
Product Windows App Client for Windows Desktop
Weakness CWE-345
Published March 10, 2026
Last update April 14, 2026

CVSS base score

5.9/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Insufficient verification of data authenticity in Windows App Installer allows an unauthorized attacker to perform spoofing over a network.

Key dates

02Disclosure timeline

March 10, 2026 CVE published
April 14, 2026 Record updated