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Vulnerability DatabaseCVE-2021-28439
CVE-2021-28439:
vulnerability analysis and mitigation
Overview
Windows TCP/IP Driver Denial of Service Vulnerability (CVE-2021-28439) was disclosed in April 2021 as part of Microsoft's Patch Tuesday updates. This vulnerability affects the TCP/IP protocol stack in various versions of Microsoft Windows operating systems (NVD, Trustwave).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating that it is network-accessible, requires low attack complexity, and needs no privileges or user interaction to exploit. The vulnerability specifically affects the Windows TCP/IP driver component (NVD).
Impact
If successfully exploited, this vulnerability could allow an attacker to perform a denial of service attack against the affected system, potentially causing the system to become unresponsive or crash (NVD).
Exploitability
The vulnerability requires no user interaction and can be exploited remotely over the network. No public exploits were known at the time of disclosure (Trustwave).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability as part of their April 2021 Patch Tuesday updates. Users are advised to apply the security updates as soon as possible (Trustwave).
Additional resources
Source: This report was generated using AI
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