CVE intelligence and bounded remediation

CVE-2025-21197 — Microsoft Windows 10 1507 security vulnerability

Medium CVSS 6.5

Improper access control in Windows NTFS allows an authorized attacker to disclose file path information under a folder where the attacker doesn't have permission to list content.

Severity
Medium
CVSS
6.5 (3.1)
Published
2025-04-08
CISA KEV
Not currently listed
Ecosystem
windows/system
Weaknesses
CWE-284

Affected products

  • microsoft / windows_10_1507
  • microsoft / windows_10_1607
  • microsoft / windows_10_1809
  • microsoft / windows_10_21h2
  • microsoft / windows_10_22h2
  • microsoft / windows_11_22h2

Showing 6 representative product identities from 21 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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