A flaw 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-…

A stack-based buffer overflow vulnerability affects multiple D-Link NAS devices including DNS-120, DNR-202L, DNS-315L, DNS-320 series, 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 version 20260205. The vulnerability exists in the UPnP_AV_Server_Path_Setting function of /cgi-bin/app_mgr.cgi file. Remote attackers can exploit this vulnerability to cause buffer overflow through manipulation. An exploit has been published and is publicly available, making this a high-risk vulnerability requiring immediate patching.