CVE-2026-58643

Medium

Description

Improper neutralization of input during web page generation ('cross-site scripting') in Windows Admin Center allows an unauthorized attacker to perform spoofing over a network.

SeverityMedium

CVSS6.1

Exploit probability—

Product

Microsoft Windows Admin Center

PublishedJul 16, 2026

First seenJul 16, 2026

Weakness typeCWE-79Cross-site scripting (XSS)

How to fix

Update

microsoft windows_admin_center2511 or later

Patches

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58643

Affected products

Product	Affected versions	Fixed in
microsoft windows_admin_center	1809 ≤ v < 2511	2511

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