Adobe Reader and Acrobat Critical Security Updates

Adobe has released security updates for Adobe Reader and Acrobat XI for Windows. These updates address critical vulnerabilities that could potentially allow an attacker to take control of the affected system.

Release date: August 8, 2017
Vulnerability identifier: APSB17-24
Platform: Windows

Update or Complete Download

Update checks can be manually activated by choosing Help > Check for Updates.

• Adobe Reader XI (11.0.21, Pro and Standard) for Windows is available here: http://supportdownloads.adobe.com/detail.jsp?ftpID=6208. 
• Reader DC and other versions are available here:  https://www.adobe.com/support/downloads/product.jsp?product=10&platform=Windows 
• Acrobat for Windows is available here:  http://www.adobe.com/support/downloads/product.jsp?product=1&platform=Windows  

Note: UNcheck any pre-checked additional options presented with the update. They are not part of the software update and are completely optional.

Enable "Protected View"

Due to frequent vulnerabilities, it is recommended that Windows users of Adobe Reader and Acrobat ensure that Protected View is enabled.  Neither the Protected Mode or Protected View option is available for Macintosh users.

To enable this setting, do the following:

• Click Edit > Preferences > Security (Enhanced) menu. 
• Change the "Off" setting to "All Files".
• Ensure the "Enable Enhanced Security" box is checked. 

Image via Sophos Naked Security Blog

References

• PSIRT
• Release Notes | Acrobat, Reader
• Security Bulletin
• System Requirements

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