CVE-2025-21391

Timeline

Detection, updates, and resolution for this record.

1. Feb 11, 2025 · Catalog

   Detected

   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.

2. Feb 11, 2025 · CISA KEV

   Known exploited

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

3. Mar 4, 2025 · CISA KEV

   Remediation due

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

4. Sep 24, 2026 · Catalog

   Updated

   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.

Affected

• cpe microsoft/windows 10 1507version unspecified
• cpe microsoft/windows 10 1607version unspecified
• cpe microsoft/windows 10 1809version unspecified
• cpe microsoft/windows 10 21h2version unspecified
• cpe microsoft/windows 10 22h2version unspecified
• vendor Microsoft Windowsversion unspecified

Sources

• CISA KEVCVE-2025-21391

  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.

  cisa.gov
• CVE.orgCVE-2025-21391

  Official CVE identifier

  cve.org
• FIRST EPSSCVE-2025-21391

  30-day exploitation probability 2.3%

  first.org
• NIST NVDCVE-2025-21391

  Windows Storage Elevation of Privilege Vulnerability

  nvd.nist.gov

References

• CISA note · msrc.microsoft.com
• CISA note · nvd.nist.gov
• US Government Resource · cisa.gov