Adobe, although they have admitted to the flaw, has not given a time line for fixing the affected applications with include Acrobat (Reader as well) 9.1, 8.1.4, 7.1.1 and earlier. Read more here ...

Disabling JavaScript will prevent code execution, but not crashes of Adobe Acrobat/Reader. Trend Micro identifies different malware related to this vulnerability in older versions of Adobe Acrobat ...

Affected are Adobe Acrobat Reader versions 2018.009.20050 and 2017.011.30070 and earlier. The vulnerability allows attackers to hide malicious JavaScript code in a PDF file.