Critical vulnerabilities in Photoshop CS4

Critical vulnerabilities have been identified in Photoshop CS4 11.01 and earlier for Windows and Macintosh that could allow an attacker who successfully exploits these vulnerabilities to take control of the affected system.

A malicious .ASL, .ABR, or .GRD file must be opened in Photoshop CS4 by the user for an attacker to be able to exploit these vulnerabilities.

Adobe recommends Photoshop CS4 customers update to Photoshop CS4 11.0.2, which resolves these issues. Adobe also encourages all customers to follow security best practices by exercising caution before opening any unknown file or files from unknown sources, regardless of the application used to open the file.

These issues do not affect Photoshop CS5.

To verify the version of Adobe Photoshop CS4 currently installed, choose Help > About Adobe Photoshop CS4 from the Adobe Photoshop menu bar. To check for updates, choose Help > Updates from the Adobe Photoshop menu bar.

Photoshop CS4 customers can find the Photoshop CS4 11.0.2 update for Windows or Macintosh here:

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Critical vulnerabilities in Photoshop CS4