Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2020-0993
CVE-2020-0993:
vulnerability analysis and mitigation
Overview
A denial of service (DoS) vulnerability exists in Windows DNS when it fails to properly handle queries, identified as CVE-2020-0993. The vulnerability affects Windows DNS service on client systems and was disclosed in April 2020 as part of Microsoft's Patch Tuesday updates (Help Net Security).
Technical details
The vulnerability has been assigned a CVSS v3.1 Base Score of 6.5 (Medium) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. The CVSS v2.0 Base Score is 6.8 (Medium) with the vector (AV:N/AC:L/Au:S/C:N/I:N/A:C) (NVD).
Impact
When successfully exploited, this vulnerability can lead to a denial of service condition in the Windows DNS service. Despite not allowing code execution, the vulnerability could enable an authenticated attacker to cause widespread service disruption (Help Net Security).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability. System administrators should prioritize the deployment of these patches, with security experts recommending implementation within 72 hours of release (Help Net Security).
Additional resources
Source: This report was generated using AI
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