CVE-2026-4196 PUBLISHED

A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This impacts the function cgi_recovery/cgi_backup_now/cgi_set_schedule/cgi_set_rsync_server of the file /cgi-bin/remote_backup.cgi. The manipulation leads to command injection. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.

• pjq123 (VulDB User) reporter

• VDB-351108 | D-Link DNS-1550-04 remote_backup.cgi cgi_set_rsync_server command injection
• VDB-351108 | CTI Indicators (IOB, IOC, TTP, IOA)
• Submit #769855 | D-Link DNS-120、DNR-202L、DNS-315L、DNS-320、DNS-320L、DNS-320LW、DNS-321、DNR-322L、DNS-323、DNS-325、DNS-326、DNS-327L、DNR-326、DNS-340L、DNS-343、 up to 20260205 Command Injection
• Submit #769856 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)
• Submit #769857 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)
• Submit #769858 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Command Injection (Duplicate)
• https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_98/98.md
• https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_99/99.md
• https://www.dlink.com/

• Command Injection CWE
• Injection CWE