Adobe's Acrobat and Acrobat Reader packages are currently under attack from a JavaScript-based exploit, similar to one which afflicted the software back in June.

Adobe acknowledged that all versions of Reader and Acrobat contain at least one critical vulnerability.

All users of Adobe Reader/Acrobat should therefore show extreme caution when deciding which PDF files to open regardless of whether they have disabled JavaScript support or not.

The more diverse the PDF reader pool, the better for user security, Runald says. Meanwhile, details about the new Reader zero-day are sketchy, other that it being JavaScript-based.

Adobe Acrobat is a software suite used for creating, viewing, and editing PDF (Portable Document Format) documents. It is developed and maintained by Adobe Systems and is available for Windows and ...