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MSRC compact vulnerability detail

CVE-2025-21212 · Internet Connection Sharing (ICS) Denial of Service Vulnerability

No description was published by MSRC.

Severity
Important
Impact
Denial of Service
CVSS
6.5 base · 5.7 temporal
Release
2025-02-11
Signals
Windows Internet Connection Sharing (ICS) Denial of Service Exploited: No Publicly disclosed: No Exploitability: Exploitation Less Likely
CWE
CWE-125: Out-of-bounds Read
Patch Diff
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Resolved binary override
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Description
No description was published by MSRC.
FAQ / Articles
FAQ
According to the CVSS metrics, successful exploitation of this vulnerability could lead to major loss of availability (A:H). What does that mean for this vulnerability? An attacker can send specially crafted packets which could affect availability of the service and result in Denial of Service (DoS).
FAQ
According to the CVSS score, the attack vector is adjacent (AV:A). What does this mean for this vulnerability? This attack is limited to systems connected to the same network segment as the attacker. The attack cannot be performed across multiple networks (for example, a WAN) and would be limited to systems on the same network switch or virtual network.