What’s Vulnerable › Vulnerabilities

CVE-2026-58643: Windows Admin Center Spoofing Vulnerability

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-16 · updated 2026-10-28
• Weakness: CWE-79

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.

Affected products

• Microsoft Windows Admin Center: from 1809 before 2511 — fixed in 2511
• Microsoft Windows Admin Center: from 1809.0 before 2.6.7 — fixed in 2.6.7

How to fix

Upgrade to a fixed version: Microsoft Windows Admin Center 2511; Microsoft Windows Admin Center 2.6.7. Check the vendor advisory for mitigations.

References

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

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