CVE-2020-1538: 
vulnerability analysis and mitigation

CVE-2020-1538 is an elevation of privilege vulnerability that exists in the Windows UPnP Device Host component due to improper memory handling. The vulnerability was discovered and disclosed to Microsoft, with the security advisory being published on August 17, 2020. This vulnerability affects multiple versions of Microsoft Windows, including Windows 10, Windows 8.1, Windows 7, and various Windows Server versions (NVD).

The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The CVSS v2.0 base score is 4.6 (MEDIUM) with vector (AV:L/AC:L/Au:N/C:P/I:P/A:P). The vulnerability stems from how the Windows UPnP Device Host handles memory operations (NVD).

If successfully exploited, this vulnerability allows an attacker to elevate their privileges on the affected system. The vulnerability affects the confidentiality, integrity, and availability of the system, with potential for high impact across all three security properties as indicated by the CVSS score (NVD).

To exploit this vulnerability, an attacker would first need to gain execution privileges on the target system. Once achieved, they could run a specially crafted application to elevate their privileges further. The local attack vector and low attack complexity suggest that exploitation is straightforward once initial access is obtained (NVD).

Microsoft has released a security update that addresses this vulnerability by correcting how the Windows UPnP Device Host handles memory. Users are advised to apply the security update to affected systems (Microsoft Advisory).