Zero-Day Flaw Hits All Versions Of Adobe PDF Reader

I can't put this any more plainly: If you use Adobe Reader, I urge you to disable its JavaScript support today.

Graham Cluley, Contributor

April 29, 2009

1 Min Read

I can't put this any more plainly: If you use Adobe Reader, I urge you to disable its JavaScript support today.A serious security vulnerability has been found in all versions of Adobe's ubiquitous PDF reading software that could allow hackers to run unauthorized code to execute on your computer.

According to a blog post from Adobe's security response team, all currently supported shipping versions of Adobe Reader and Acrobat (Adobe Reader and Acrobat 9.1, 8.1.4, 7.1.1, and earlier versions) are vulnerable.

Yes, that means this advice is for you whether you use Windows, Macintosh, or Unix.

Users are advised to disable JavaScript in Adobe Reader and Acrobat by following these instructions:

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