What is CVE-2025-48802?

CVE-2025-48802 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows SMB Server Spoofing Vulnerability

Which CVE IDs does CVE-2025-48802 cover?

CVE-2025-48802 covers the following CVE IDs: CVE-2025-48802. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-48802?

CVE-2025-48802 has a CVSS v3 base score of 6.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-48802?

CVE-2025-48802 affects 7 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 Server 2022; and others — see the full list on the advisory page.

CVE-2025-48802HighCVSS 6.5

Windows SMB Server Spoofing Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

July 8, 2025

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-48802 →

📋 Description

Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.

🎯 Affected products7

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 Server 2022
Windows Server 2022 (Server Core installation)
Windows Server 2022, 23H2 Edition (Server Core installation)

✅ Remediation

KB5062572 (Security Update) — fixed build 10.0.20348.3932 KB5062552 (Security Update) — fixed build 10.0.22621.5624 KB5062552 (Security Update) — fixed build 10.0.22631.5624 KB5062570 (Security Update) — fixed build 10.0.25398.1732

🔗 References (7)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48802
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5062572
referencehttps://support.microsoft.com/help/5062572
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5062552
referencehttps://support.microsoft.com/help/5062552
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5062570
referencehttps://support.microsoft.com/help/5062570