CVE-2020-0996: 
vulnerability analysis and mitigation

CVE-2020-0996 is an elevation of privilege vulnerability that exists when the Windows Update Stack fails to properly handle objects in memory. The vulnerability was disclosed on April 15, 2020, affecting multiple versions of Microsoft Windows including Windows 10 (versions 1803, 1809, 1903, 1909) and Windows Server (2016 and 2019) systems (NVD, MITRE).

The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (HIGH), with a vector string of CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. This indicates that the vulnerability requires local access, low attack complexity, low privileges, and no user interaction to exploit. The impact potential is high across confidentiality, integrity, and availability (NVD).

If successfully exploited, this vulnerability could allow an attacker to gain elevated privileges on affected systems. The high CVSS impact scores across confidentiality, integrity, and availability (all rated as High) indicate that successful exploitation could result in significant system compromise (NVD).

Microsoft has released security updates to address this vulnerability. Users and administrators of affected systems should apply the appropriate security updates through Windows Update or Microsoft Update Catalog (MSRC).