CVE-2025-21391

Microsoft Windows Storage Link Following Vulnerability

Microsoft — Windows

Added to KEV catalog: 11 February 2025
Federal remediation due date: 4 March 2025
Weakness classification (CWE): CWE-59

CISA Description

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

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21391 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21391

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