Cloud Vulnerability DB
A community-led vulnerabilities database
Vulnerability DatabaseCVE-2025-21216
CVE-2025-21216:
vulnerability analysis and mitigation
Overview
Internet Connection Sharing (ICS) Denial of Service Vulnerability (CVE-2025-21216) was disclosed on February 11, 2025. The vulnerability affects multiple versions of Microsoft Windows systems, including Windows 10, Windows 11, and various Windows Server editions (NVD, AttackerKB).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 6.5 (Medium), with the following vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. The vulnerability is classified as CWE-125 (Out-of-bounds Read) and requires adjacent network access with no privileges or user interaction required (NVD).
Impact
The vulnerability affects the availability of the Internet Connection Sharing (ICS) service, potentially leading to a denial of service condition. The impact is limited to availability with no effect on confidentiality or integrity (NVD).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability across affected Windows versions. Updates are available through multiple Knowledge Base (KB) articles including KB5051974, KB5051979, KB5051980, KB5051987, KB5051989, KB5052000, and KB5052006 (Rapid7).
Additional resources
Source: This report was generated using AI
Free Vulnerability Assessment
Benchmark your Cloud Security Posture
Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.
Additional Wiz resources
Get a personalized demo
Ready to see Wiz in action?
"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management