What is CVE-2025-27475?

CVE-2025-27475 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows Update Stack Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2025-27475 cover?

CVE-2025-27475 covers the following CVE IDs: CVE-2025-27475. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-27475?

CVE-2025-27475 has a CVSS v3 base score of 7.0, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-27475?

CVE-2025-27475 affects 6 products, including: Windows 11 Version 22H2 for ARM64-based Systems; Windows 11 Version 22H2 for x64-based Systems; Windows 11 Version 23H2 for ARM64-based Systems; Windows 11 Version 23H2 for x64-based Systems; Windows 11 Version 24H2 for ARM64-based Systems; and others — see the full list on the advisory page.

CVE-2025-27475HighCVSS 7.0

Windows Update Stack Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

April 8, 2025

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-27475 →

📋 Description

Sensitive data storage in improperly locked memory in Windows Update Stack allows an authorized attacker to elevate privileges locally.

🎯 Affected products6

Windows 11 Version 22H2 for ARM64-based Systems
Windows 11 Version 22H2 for x64-based Systems
Windows 11 Version 23H2 for ARM64-based Systems
Windows 11 Version 23H2 for x64-based Systems
Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems

✅ Remediation

KB5055528 (Security Update) — fixed build 10.0.22621.5189 KB5055528 (Security Update) — fixed build 10.0.22631.5189 KB5055523 (Security Update) — fixed build 10.0.26100.3775

🔗 References (5)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27475
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5055528
referencehttps://support.microsoft.com/help/5055528
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5055523
referencehttps://support.microsoft.com/help/5055523