What is CVE-2026-42900?

CVE-2026-42900 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Microsoft Windows App Store Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2026-42900 cover?

CVE-2026-42900 covers the following CVE IDs: CVE-2026-42900. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-42900?

CVE-2026-42900 has a CVSS v3 base score of 8.1, published by Microsoft Security Response Center (MSRC).

CVE-2026-42900HighCVSS 8.1

Microsoft Windows App Store Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

July 17, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-42900 →

🔗 CVE IDs covered (1)

📋 Description