#VU107203 Resource exhaustion in Windows Server - CVE-2025-27470

Vulnerability identifier: #VU107203

Vulnerability risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-27470

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in Windows Standards-Based Storage Management Service. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Windows Server: 2012 R2 6.3.9600.21871 - 2012 R2 6.3.9600.22470, 2016 10.0.14393.10 - 2016 10.0.14393.7876, 2019 10.0.17763.1 - 2019 10.0.17763.7009, 2022 10.0.20348.202 - 2022 10.0.20348.3328, 2025 10.0.26100.1742 - 2025 10.0.26100.3476

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-27470

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.