Successful exploitation of the vulnerability leads to arbitrary code execution with the context of the current user.
Critical Code Execution
The security update fixes multiple critical code execution flaws, that includes two buffer overflow vulnerability, two Untrusted pointers dereference, 4 Out-of-bounds write vulnerability, 3 Heap Overflow flaws and 24 Use After Free vulnerabilities.
Security update fixes multiple Information Disclosure vulnerabilities that include 43 out-of-bounds read flaws, Security Bypass, and four Integer Overflow Vulnerability. Here
Adobe also fixed the vulnerability(CVE-2018-15982) in Flash Player last week which was exploited in wild to execute the malicious flash object into victims machine.
The attackers primarily targeted Russian state healthcare clinic through the crafted document that contains several pages in order to forge employee to open it and exploiting this Flash 0day vulnerability.