A security flaw in Adobe Systems' line of graphics design software could allow unauthorised users to change or destroy program files, the company has said.
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The flaw affects Adobe Creative Suite 2, Adobe Photoshop CS2 and Adobe Illustrator CS2.
The vulnerability occurs when the applications are run in shared, multi-user installations, according to an Adobe security advisory.
"If exploited, this vulnerability could allow a hostile user to replace these program files with malicious or harmful code that could read, write, or destroy sensitive data, if subsequently run by a privileged user," said Adobe.
The vulnerability has been rated as "important" by Adobe, and it has issued software updates to close the security problem.
The flaw affects the Adobe graphics software running in both Windows and Mac OS operating environments.