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Windows 10 1507 CVE-2025-21391

HIGH
Improper Link Resolution Before File Access (CWE-59)
2025-02-11 secure@microsoft.com
7.1
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.1 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 28, 2026 - 18:26 vuln.today
Patch released
Mar 28, 2026 - 18:26 nvd
Patch available
Added to CISA KEV
Oct 27, 2025 - 17:13 cisa
CISA KEV
CVE Published
Feb 11, 2025 - 18:15 nvd
HIGH 7.1

DescriptionCVE.org

Windows Storage Elevation of Privilege Vulnerability

AnalysisAI

Windows Storage contains an elevation of privilege vulnerability through symlink following that allows authorized attackers to delete targeted files, enabling privilege escalation.

Technical ContextAI

The CWE-59 improper link resolution allows a local attacker to create symbolic links that redirect Windows Storage operations to delete files in privileged locations. By targeting specific system files, the attacker can create conditions for privilege escalation.

RemediationAI

Apply Microsoft security update. Monitor for suspicious symlink creation in user-writable directories.

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CVE-2025-21391 vulnerability details – vuln.today

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