CVE-2021-28551: 
Adobe Acrobat Reader Continuous vulnerability analysis and mitigation

CVE-2021-28551 is an Out-of-bounds read vulnerability affecting Adobe Acrobat Reader DC versions 2021.001.20155 (and earlier), 2020.001.30025 (and earlier), and 2017.011.30196 (and earlier). The vulnerability was discovered and disclosed in March 2021, as indicated by the record creation date of March 16, 2021 (CVE Details).

The vulnerability is classified as an Out-of-bounds read vulnerability (CWE-125). It has received a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The CVSS v2.0 base score is 6.8 (MEDIUM) with the vector (AV:N/AC:M/Au:N/C:P/I:P/A:P) (NVD).

If successfully exploited, this vulnerability could allow an unauthenticated attacker to achieve arbitrary code execution in the context of the current user. The vulnerability could potentially lead to disclosure of sensitive memory information and system compromise (CVE Details).

Adobe has released security updates to address this vulnerability. Users should update to the latest version of Adobe Acrobat and Reader DC to mitigate this security risk (Adobe Advisory).