U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database

Vulnerability Change Records for CVE-2026-71927

Change History

New CVE Received from VulnCheck 8/24/2026 2:17:08 PM

Action Type Old Value New Value
Added Description 

                  
                
              		

              
                
                  
                  
                    
Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the rebDevice function. The vulnerability is caused by insufficient filtering of the username and password fields before command execution. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device's web management interface.

                  
                
              		
            

            

              Added
              CVSS V4.0

              
                
                  
                  
                    

                  
                
              		

              
                
                  
                  
                    
AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

                  
                
              		
            

            

              Added
              CVSS V3.1

              
                
                  
                  
                    

                  
                
              		

              
                
                  
                  
                    
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

                  
                
              		
            

            

              Added
              CWE

              
                
                  
                  
                    

                  
                
              		

              
                
                  
                  
                    
CWE-78

                  
                
              		
            

            

              Added
              Reference

              
                
                  
                  
                    

                  
                
              		

              
                
                  
                  
                    
https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/

                  
                
              		
            

            

              Added
              Reference

              
                
                  
                  
                    

                  
                
              		

              
                
                  
                  
                    
https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-os-command-injection-via-rebdevice

                  
                
              		
            

            

              Added
              Affected

              
                
                  
                  
                    

                  
                
              		

              
                
                  
                  
                    
[{"vendor":"DrayTek Corporation","product":"VigorSwitch G2540xs","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"3.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P2540xs","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"3.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch FX2120","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"3.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch G2282x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.10.6","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P2282x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.10.6","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch Q2300x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.10.7","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch PQ2300xb","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.10.7","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch G2542x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"3.10.6","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P2542x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"3.10.6","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P2542xh","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"3.10.6","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch PX2060","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch G1280","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P1280","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P1281x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch G1282","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P1282","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch G2121","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P2121","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch PQ2121x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch Q2121x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch G2280x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P2280x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch Q2200x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch PQ2200xb","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch G2100","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P2100","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch G2540x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]},{"vendor":"DrayTek Corporation","product":"VigorSwitch P2540x","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"2.9.10","versionType":"custom","status":"affected"}]}]