CVE-2022-21930: 
vulnerability analysis and mitigation

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability (CVE-2022-21930) was disclosed in January 2022 as part of Microsoft's monthly security updates. The vulnerability affects Microsoft Edge browser based on Chromium (Talos Blog).

The vulnerability has been assigned a CVSS v3.1 base score of 4.2 (Medium) with the following vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N. This indicates that the vulnerability requires user interaction and has high attack complexity, but does not require privileges. The impact is limited to low-level confidentiality and integrity breaches with no availability impact (NVD).

If successfully exploited, this vulnerability could allow an attacker to execute remote code on the targeted system. The vulnerability affects confidentiality and integrity of the system with low severity, though requires user interaction to be exploited (NVD).

Microsoft has released security updates to address this vulnerability. Users should update to Microsoft Edge version 97.0.1072.55 or later to mitigate this vulnerability (NVD).

The vulnerability was disclosed as part of Microsoft's January 2022 Patch Tuesday, which addressed a total of 102 vulnerabilities. This was noted as the largest security update from Microsoft in eight months at that time (Talos Blog).