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Unrated severityNVD Advisory· Published Mar 16, 2026· Updated Mar 16, 2026

D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow

CVE-2026-4214

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

23
  • Dlink/DNS-120llm-fuzzy2 versions
    <= 20260205+ 1 more
    • (no CPE)range: <= 20260205
    • (no CPE)range: 20260205
  • Dlink/DNR-202Lllm-fuzzy2 versions
    <= 20260205+ 1 more
    • (no CPE)range: <= 20260205
    • (no CPE)range: 20260205
  • Dlink/DNS-315Lllm-fuzzy2 versions
    <= 20260205+ 1 more
    • (no CPE)range: <= 20260205
    • (no CPE)range: 20260205
  • Dlink/DNR-326cpe-rescue2 versions
    20260205+ 1 more
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
  • Dlink/DNS 1100 4 Firmwarecpe-rescue
    Range: 20260205
  • Dlink/DNS 1200 05 Firmwarecpe-rescue
    Range: 20260205
  • Dlink/DNS-1550-04cpe-rescue
    Range: 20260205
  • Dlink/DNS-320cpe-rescue7 versions
    20260205+ 6 more
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
  • Dlink/DNS-327Lcpe-rescue
    Range: 20260205
  • Dlink/DNS-340Lcpe-rescue
    Range: 20260205
  • Dlink/DNS-343cpe-rescue2 versions
    20260205+ 1 more
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
  • D-Link/DNS-726-4v5
    Range: 20260205

Patches

Vulnerability mechanics

References

5

News mentions

0

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