CVE-2026-23656: medium-severity vulnerability in Microsoft Windows App Client for Windows Desktop
Windows App Installer Spoofing Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.3%
Insufficient verification of data authenticity in Windows App Installer allows an unauthorized attacker to perform spoofing over a network.
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
Affected products
Microsoft · Windows App Client for Windows DesktopRelated CVEs — Microsoft Windows App Client for Windows Desktop
In the same product, most dangerous first.
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