CVE-2025-21212
vulnerability analysis and mitigation

Overview

A vulnerability identified as CVE-2025-21212 was discovered in Microsoft's Internet Connection Sharing (ICS) service. The vulnerability was disclosed on February 11, 2025, and was reported by Microsoft Corporation (NVD, CVE).

Technical details

The vulnerability has been classified as CWE-125 (Out-of-bounds Read) with a CVSS v3.1 Base Score of 6.5 (MEDIUM). The attack vector is identified as adjacent (AV:A), with low attack complexity (AC:L), requiring no privileges (PR:N) and no user interaction (UI:N). The scope is unchanged (S:U), with no impact on confidentiality (C:N) or integrity (I:N), but high impact on availability (A:H) (NVD).

Impact

The vulnerability can result in a Denial of Service condition in the Internet Connection Sharing (ICS) service, potentially affecting system availability (Rapid7).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability across multiple Windows versions, including Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022, and Windows Server 2025 (Rapid7).

Additional resources


SourceThis report was generated using AI

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