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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-4203

D-Link DNS-1550-04 network_mgr.cgi cgi_dhcpd command injection

Description

A vulnerability was 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. Impacted is the function cgi_portforwarding_add/cgi_portforwarding_del/cgi_portforwarding_modify/cgi_portforwarding_add_scan/cgi_dhcpd_lease/cgi_ddns/cgi_ip/cgi_dhcpd of the file /cgi-bin/network_mgr.cgi. The manipulation results in command injection. The attack may be launched remotely. The exploit is now public and may be used.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

D-Link DNS-120

  • 20260205affected

D-Link DNR-202L

  • 20260205affected

D-Link DNS-315L

  • 20260205affected

D-Link DNS-320

  • 20260205affected

D-Link DNS-320L

  • 20260205affected

D-Link DNS-320LW

  • 20260205affected

D-Link DNS-321

  • 20260205affected

D-Link DNR-322L

  • 20260205affected

D-Link DNS-323

  • 20260205affected

D-Link DNS-325

  • 20260205affected

D-Link DNS-326

  • 20260205affected

D-Link DNS-327L

  • 20260205affected

D-Link DNR-326

  • 20260205affected

D-Link DNS-340L

  • 20260205affected

D-Link DNS-343

  • 20260205affected

D-Link DNS-345

  • 20260205affected

D-Link DNS-726-4

  • 20260205affected

D-Link DNS-1100-4

  • 20260205affected

D-Link DNS-1200-05

  • 20260205affected

D-Link DNS-1550-04

  • 20260205affected

References