Race condition in the MoveFileEx call hook feature in Adobe Reader and Acrobat 11.x before 11.0.09 on Windows allows attackers to bypass a sandbox protection mechanism, and consequently write to files in arbitrary locations, via an NTFS junction attack, a similar issue to CVE-2014-0568.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.