CVE-2026-5213 | D-Link DNS-1550-04 up to 20260205 /cgi-bin/account_mgr.cgi cgi_adduser_to_session read_list stack-based overflow

A vulnerability identified as critical has been detected 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. The affected element is the function cgi_adduser_to_session of the file /cgi-bin/account_mgr.cgi. This manipulation of the argument read_list causes stack-based buffer overflow.

The identification of this vulnerability is CVE-2026-5213. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.