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CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.
Microsoft Windows Storage contains a link following vulnerability that could allow for privilege escalation. This vulnerability could allow an attacker to delete data including data that results in the service being unavailable.
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Explore global source statements, affected packages and advisory history for CVE-2025-21391. The catalog has a separate collection scope from Microsoft release records.
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Listed in CISA KEV · added 11 Feb 2025 · Microsoft · Windows
Microsoft Windows Storage contains a link following vulnerability that could allow for privilege escalation. This vulnerability could allow an attacker to delete data including data that results in the service being unavailable.
No EPSS score is available here for this CVE.
Saved 23 Oct 2026 16:01:26 UTC · View this risk record (JSON)
Windows Storage Elevation of Privilege Vulnerability
Original source record · Cite this exact observation · Complete original publisher JSON
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CVSS 3.1 · 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:F/RL:O/RC:C