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Microsoft Security Response CenterCVE-2026-68821

Windows Package Manager Elevation of Privilege Vulnerability

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

Read the vendor bulletin Get alerts for App Installer
7.3CVSS out of 10High severity
Scope

What the vendor says is affected

  • App Installer

Versions the vendor lists as fixed

  • 1.29.279
Next step

What the vendor recommends

Release Notes

Review the complete instructions on the vendor's site
Update history

What changed in later vendor updates

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

    • Added fixed versions: 1.29.279.
    • Removed fixed versions: 1.29.280.
    • Added fixed versions: 1.29.280.
    • Removed fixed versions: 1.30.80.
    • The vendor changed its remediation guidance.
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-68821View CVSS, KEV, EPSS, and threat context
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