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CVE-2026-21519CISA KEV

Microsoft Windows Type Confusion Vulnerability

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEV Check MSRC

CISA catalog record

Microsoft Desktop Windows Manager contains a type confusion vulnerability that could allow an authorized attacker to elevate privileges locally.

Product
Windows
Added to KEV
10 Feb 2026
Federal remediation due
3 Mar 2026
Known ransomware use
Not reported
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