CVE-2025-21212
Internet Connection Sharing (ICS) Denial of Service Vulnerability
MEDIUM
6.5
CVSS Score
Published: February 11, 2025 at 05:58 PM UTC
Updated: June 17, 2026 at 08:42 AM UTC
13 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows 10 1809
Using Windows 10 Version 1809 by Microsoft?
Get instant alerts when new vulnerabilities affect Windows 10 Version 1809 - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.5
Exploit prediction
EPSS 1%
SSVC
No known exploit
Description
Internet Connection Sharing (ICS) Denial of Service Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 10.0.14393.7785, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.17763.6893, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.19044.5487, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.19045.5487, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.22621.4890, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.22631.4890, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.26100.3194, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.14393.7785, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.17763.6893, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.20348.3207, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21212SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.5MEDIUMmicrosoft
Vector?
Quick Info
StatusANALYZED
CWE
CWE-125NVD-CWE-noinfo
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card