GNU patch through 2.7.6 is vulnerable to OS shell command injection that can be exploited by opening a crafted patch file that contains an ed style diff payload with shell metacharacters. The ed editor does not need to be present on the vulnerable system. This is different from CVE-2018-1000156.
                
                    Exploit prediction scoring system (EPSS) score
                    
                        
                            EPSS Score 0.025
                        
                    
                    
                        
                            EPSS Ranking 84.8%