Incomplete blacklist vulnerability in sudo 1.6.8 and earlier allows local users to gain privileges via the (1) SHELLOPTS and (2) PS4 environment variables before executing a bash script on behalf of another user, which are not cleared even though other variables are.
                
                    Exploit prediction scoring system (EPSS) score
                    
                        
                            EPSS Score 0.001
                        
                    
                    
                        
                            EPSS Ranking 27.7%