CVE-2026-68821: Microsoft App Installer

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges locally.

Affected products

• Microsoft App Installer: before 1.29.280 (fixed in 1.29.280)

Published 2026-08-11. Last modified 2026-08-29.