Mysterious hackers ingenuously reveal two zero-days to the security community, experts collaborated to promptly fix them. The malicious PDF was discovered late in March 2018 (Two suspicious PDF samples zero-day 1, zero day 2) The analysis of the document revealed it was exploiting two previously unknown vulnerabilities, a remote-code execution vulnerability in Adobe Reader and a Windows privilege escalation flaw. The two vulnerabilities have been already patched, Microsoft addressed the CVE-2018-8120 with the release of the May 2018 Patch Tuesday.”]
Source: https://securityaffairs.co/wordpress/72584/hacking/zero-days-exploits.html