CVE-2025-21391 · netVigilance record NV25-0028
Microsoft Windows Storage Link Following
past due
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA deadline 2025-03-04 · passed 1 year 6 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Microsoft Windows. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-59.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 1 year 6 months ago
Sources
- NVD entry for CVE-2025-21391 nvd.nist.gov/vuln/detail/CVE-2025-21391
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- msrc.microsoft.com msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21391
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2025-21391