Description
Insufficient verification of data authenticity in Windows App Installer allows an unauthorized attacker to perform spoofing over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows App Client for Windows Desktop | 1.00 – < 2.0.964 | 2.0.964 |
Advisories 3
- WID-SEC-2026-0661 Microsoft Windows und Windows Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 5, 2026
- NCSC-2026-0080 Kwetsbaarheden verholpen in Microsoft Windows NCSC-NL (Netherlands) · Mar 10, 2026
- MSRC-CVE-2026-23656 Windows App Installer Spoofing Vulnerability Microsoft Security Response Center · Mar 10, 2026
References
- Windows App Installer Spoofing Vulnerability vendor-advisory patch