High [CVE-2025-21174] Windows Standards-Based Storage Management Service Denial of Service Vulnerability
This high-severity Microsoft Server advisory covers CVE-2025-21174 affecting Windows Server 2012 R2 (Server Core installation), Windows Server 2016 (Server Core installation), Windows Server 2019 (Server Core installation).
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Summary
Uncontrolled resource consumption in Windows Standards-Based Storage Management Service allows an unauthorized attacker to deny service over a network.
Affected products named by the advisory: Windows Server 2012 R2; Windows Server 2012 R2 (Server Core installation); Windows Server 2016; Windows Server 2016 (Server Core installation); and 5 more.
Affected products named by the advisory: Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server 2025 (Server Core installation).
- Windows Server 2012 R2 6.3.9600.0 before 6.3.9600.22523
- Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 before 6.3.9600.22523
- Windows Server 2016 10.0.14393.0 before 10.0.14393.7969
- Windows Server 2016 (Server Core installation) 10.0.14393.0 before 10.0.14393.7969
- Windows Server 2019 10.0.17763.0 before 10.0.17763.7136
- Windows Server 2019 (Server Core installation) 10.0.17763.0 before 10.0.17763.7136
- Windows Server 2022 10.0.20348.0 before 10.0.20348.3453
- Windows Server 2025 10.0.26100.0 before 10.0.26100.3775
- Windows Server 2025 (Server Core installation) 10.0.26100.0 before 10.0.26100.3775
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 6.3.9600.22523
- 10.0.14393.7969
- 10.0.17763.7136
- 10.0.20348.3453
- 10.0.26100.3775
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 6.3.9600.22523, 10.0.14393.7969, 10.0.17763.7136, 10.0.20348.3453, 10.0.26100.3775. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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