#VU105545 Use-after-free in Windows and Windows Server - CVE-2025-24046

Vulnerability identifier: #VU105545

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-24046

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

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

Vendor: Microsoft

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Kernel Streaming Service Driver. A local user can escalate privileges on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 21H2 10.0.19041.3920 - 10 21H2 10.0.19044.5487, 10 22H2 10.0.19041.3920 - 10 22H2 10.0.19045.5487, 10 1507 10.0.10240.1643 - 10 1507 10.0.10240.20915, 10 1607 10.0.14393.10 - 10 1607 10.0.14393.7785, 10 1809 10.0.17763.1 - 10 1809 10.0.17763.6893, 11 22H2 10.0.22449.1000 - 11 22H2 10.0.22621.4890, 11 23H2 10.0.22631.1825 - 11 23H2 10.0.22631.4890, 11 24H2 10.0.26052.1000 - 11 24H2 10.0.26100.3194

Windows Server: 2012 R2 6.3.9600.21871 - 2012 R2 6.3.9600.22417, 2016 10.0.14393.10 - 2016 10.0.14393.7785, 2019 10.0.17763.1 - 2019 10.0.17763.6893, 2022 10.0.20348.202 - 2022 23H2 10.0.25398.1425, 2025 10.0.26100.1742 - 2025 10.0.26100.3194

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External links
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24046

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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