CVE-2022-21852: 
vulnerability analysis and mitigation

Windows DWM Core Library Elevation of Privilege Vulnerability (CVE-2022-21852) is a security flaw affecting Microsoft Windows systems. The vulnerability was initially recorded on December 14, 2021, and was publicly disclosed in January 2022. This vulnerability is distinct from related issues CVE-2022-21896 and CVE-2022-21902 (NVD).

The vulnerability is classified as an Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119). It received 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, indicating local access requirements with low attack complexity. Under CVSS v2.0, it scored 7.2 (HIGH) with the vector (AV:L/AC:L/Au:N/C:C/I:C/A:C) (NVD).

The vulnerability could allow an attacker to achieve elevation of privilege on affected systems. Given the CVSS scoring, successful exploitation could result in high impacts on confidentiality, integrity, and availability of the affected systems (NVD).

Microsoft has released security updates to address this vulnerability. Users should apply the appropriate patches through the Microsoft Update system (Microsoft Security).