CVE-2021-28339: 
vulnerability analysis and mitigation

The Remote Procedure Call Runtime Remote Code Execution Vulnerability (CVE-2021-28339) was identified and disclosed in April 2021. This vulnerability affects various versions of Microsoft Windows operating systems, including Windows 10, Windows 8.1, Windows 7 SP1, and multiple Windows Server versions (NVD).

The vulnerability has been assigned a CVSS v3.1 base score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, indicating network accessibility, low attack complexity, and requires low privileges with no user interaction. The CVSS v2.0 base score is 6.5 (MEDIUM) with vector (AV:N/AC:L/Au:S/C:P/I:P/A:P) (NVD).

The vulnerability could allow an attacker to achieve remote code execution on affected systems, potentially compromising the confidentiality, integrity, and availability of the system as indicated by the high impact scores across all three metrics in the CVSS v3.1 rating (NVD).

The vulnerability is characterized by network accessibility (AV:N) with low attack complexity (AC:L), requiring low privileges (PR:L) and no user interaction (UI:N) for exploitation (NVD).

Microsoft has released security updates to address this vulnerability. Users are advised to apply the appropriate patches through the Microsoft security advisory (Microsoft Advisory).