85774 : Foxit Reader fxdecod1.dll Path Subversion Arbitrary DLL Injection Code Execution
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Disclosure Date


Foxit Reader is prone to a flaw in the way it loads dynamic-link libraries (DLL) such as fxdecod1.dll. The program uses a fixed path to look for specific files or libraries. This path includes directories that may not be trusted or under user control. By placing a custom version of the file or library in the path, the program will load it before the legitimate version. This allows a local attacker to inject custom code that will be run with the privilege of the program or user executing the program. This attack can be leveraged remotely in some cases by placing the malicious file or library on a network share or extracted archive downloaded from a remote source. This can be done by tricking a user into opening a PDF file from the local file system or a USB drive in some cases. This attack scenario is certainly possible, but rare.


Location: Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Private
Disclosure: Vendor Verified, Third-party Verified, Coordinated Disclosure


Upgrade to version 5.4.3 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.


Foxit Corporation
Foxit Reader



CVSSv2 Score

NVD does not currently have a CVSSv2 score assigned.


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