Internet Connection Sharing Disruption in Microsoft Products
CVE-2025-21352

6.5MEDIUM

Key Information:

Vendor
Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
11 February 2025

Summary

The Internet Connection Sharing (ICS) component in Microsoft Windows contains a vulnerability that could allow an attacker to cause a Denial of Service condition. By exploiting this vulnerability, unauthorized users could disrupt network connectivity for devices utilizing ICS in affected versions of Windows. This could result in significant operational interruptions, as legitimate users may be unable to access shared internet resources.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.20915

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.7785

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.6893

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.