XDM in XFree86 3.3 and 3.3.3 generates easily guessable cookies using gettimeofday() when compiled with the HasXdmXauth option, which allows remote attackers to gain unauthorized access to the X display via a brute force attack.
                
                    Exploit prediction scoring system (EPSS) score
                    
                        
                            EPSS Score 0.032
                        
                    
                    
                        
                            EPSS Ranking 86.5%