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HIGHCVE-2026-4214Published Modified CNA VulDB

CVE-2026-4214: D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow

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-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This issue affects the function UPnP_AV_Server_Path_Setting of the file /cgi-bin/app_mgr.cgi. Executing a manipulation can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.

Metrics

CVSS v4.0
8.7
Severity
HIGH
Fixed in
—
Affected Products
20
Affected packages
  • D-Link / DNS-120
    20260205
  • D-Link / DNR-202L
    20260205
  • D-Link / DNS-315L
    20260205
  • D-Link / DNS-320
    20260205
  • D-Link / DNS-320L
    20260205
  • D-Link / DNS-320LW
    20260205
  • D-Link / DNS-321
    20260205
  • D-Link / DNR-322L
    20260205
  • D-Link / DNS-323
    20260205
  • D-Link / DNS-325
    20260205
  • D-Link / DNS-326
    20260205
  • D-Link / DNS-327L
    20260205
  • D-Link / DNR-326
    20260205
  • D-Link / DNS-340L
    20260205
  • D-Link / DNS-343
    20260205
  • D-Link / DNS-345
    20260205
  • D-Link / DNS-726-4
    20260205
  • D-Link / DNS-1100-4
    20260205
  • D-Link / DNS-1200-05
    20260205
  • D-Link / DNS-1550-04
    20260205
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
References