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CVE-2026-58643

Windows Admin Center Spoofing Vulnerability

MEDIUM
6.1
CVSS Score
Published: July 16, 2026 at 09:57 PM UTC
Updated: October 24, 2026 at 08:10 PM UTC
1 product affected across 1 vendorWindows Admin Center

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows Admin Center· Microsoft
95%
1809 ≤ v < 25111809.0
Affected range stops below 2.6.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 2511, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58643

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

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