Denial of service in Microsoft Streaming Service

1) Sensitive Data Storage in Improperly Locked Memory

EUVDB-ID: #VU107282

Risk: High

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-27471

CWE-ID: CWE-591 - Sensitive Data Storage in Improperly Locked Memory

Exploit availability: No

Description

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

The vulnerability exists due to sensitive data storage in improperly locked memory in Microsoft Streaming Service. A remote attacker can cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 21H2 10.0.19041.3920 - 11 24H2 10.0.26100.3476

Windows Server: 2008 R2 SP1 - 2025 10.0.26100.3476

CPE2.3

• cpe:2.3:o:microsoft:windows:10_21H2:10.0.19044.5608:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10_22H2:10.0.19045.5608:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10_1607:10.0.14393.7876:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10_1809:10.0.17763.7009:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:11_22H2:10.0.22621.5039:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:11_23H2:10.0.22631.5039:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:11_24H2:10.0.26100.3476:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2008:6.0.6003.23168:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012:6.2.9200.25368:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.7876:*:*:*:*:*:*

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27471

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.