CVE-2021-45061: 
Adobe Acrobat Reader Continuous vulnerability analysis and mitigation

Adobe Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by an out-of-bounds write vulnerability identified as CVE-2021-45061. The vulnerability was reported to Adobe on December 1, 2021, and was publicly disclosed on January 13, 2022. This security flaw exists within the processing of embedded fonts in Adobe Acrobat Reader DC (ZDI Advisory, NVD).

The vulnerability is classified as an out-of-bounds write (CWE-787) that occurs due to improper validation of user-supplied data during font parsing. 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 vulnerability requires local access and user interaction, but no privileges, while potentially impacting confidentiality, integrity, and availability at high levels (NVD, ZDI Advisory).

If successfully exploited, this vulnerability could result in arbitrary code execution in the context of the current user. The attacker could leverage this vulnerability to execute code in the context of the current process, potentially gaining control over the affected system (NVD, ZDI Advisory).

Adobe has released security updates to address this vulnerability through their security bulletin APSB22-01. Users are advised to update their Adobe Acrobat Reader DC installations to the latest version to mitigate this vulnerability (Adobe Advisory).