Format string vulnerabilities in (1) _probuild, (2) _dbutil, (3) _mprosrv, (4) _mprshut, (5) _proapsv, (6) _progres, (7) _proutil, (8) _rfutil and (9) prolib in Progress database 9.1C allows a local user to execute arbitrary code via format string specifiers in the file used by the PROMSGS environment variable.