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CVE-2025-21391: Microsoft Windows Storage Link Following Vulnerability
Microsoft Windows · in CISA KEV since 2025-02-11
2025-02-11added to KEV
2025-03-04federal remediation due date
2.30%EPSS exploit probability (30 days) 82.6th percentile
7.1 HIGHCVSS 3.1
Unknownknown ransomware use
0days from NVD publication to KEV
What it is
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.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-59 |
|---|---|
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| NVD published | 2025-02-11 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2025-21391.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.