CVE-2020-1118
vulnerability analysis and mitigation

Overview

A denial of service vulnerability exists in the Windows implementation of Transport Layer Security (TLS) when it improperly handles certain key exchanges, identified as CVE-2020-1118. The vulnerability was disclosed on May 21, 2020, and affects various versions of Microsoft Windows 10 (1709, 1803, 1809, 1903, 1909) and Windows Server 2019 (NVD, CVE).

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. The vulnerability exists in the Windows implementation of TLS when it improperly handles certain key exchanges (NVD).

Impact

If successfully exploited, this vulnerability could allow an attacker to perform a denial of service attack against affected systems, potentially causing system unavailability (NVD).

Exploitability

The vulnerability can be exploited remotely with low attack complexity and requires no privileges or user interaction (NVD).

Mitigation and workarounds

Microsoft has released security updates to address this vulnerability. Users should apply the appropriate patches for their affected Windows systems through Windows Update (Rapid7).

Additional resources


SourceThis report was generated using AI

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