CVE-2026-4206 | D-Link DNS-1550-04 up to 20260205 /cgi-bin/dsk_mgr.cgi command injection

A vulnerability marked as critical has been reported 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 affects the function FMT_rebuild_diskmgr/FMT_create_diskmgr/ScanDisk_run_e2fsck of the file /cgi-bin/dsk_mgr.cgi. Performing a manipulation results in command injection.

This vulnerability is reported as CVE-2026-4206. The attack is possible to be carried out remotely. Moreover, an exploit is present.