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    CVE-2026-4214

    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.

    Published:Mar 16, 2026
    Last Modified:Mar 24, 2026
    EPS:Mar 16, 2026
    EPSS Score:0.00049
    CVSS Score:8.8

    Affected Products

    Vendor
    D-link
    Product
    Dnr-202l
    Vendor
    D-link
    Product
    Dnr-322l
    Vendor
    D-link
    Product
    Dnr-326
    Vendor
    D-link
    Product
    Dns-1100-4
    Vendor
    D-link
    Product
    Dns-120
    Vendor
    D-link
    Product
    Dns-1200-05
    Vendor
    D-link
    Product
    Dns-1550-04
    Vendor
    D-link
    Product
    Dns-315l
    Vendor
    D-link
    Product
    Dns-320
    Vendor
    D-link
    Product
    Dns-320l
    Vendor
    D-link
    Product
    Dns-320lw
    Vendor
    D-link
    Product
    Dns-321
    Vendor
    D-link
    Product
    Dns-323
    Vendor
    D-link
    Product
    Dns-325
    Vendor
    D-link
    Product
    Dns-326
    Vendor
    D-link
    Product
    Dns-327l
    Vendor
    D-link
    Product
    Dns-340l
    Vendor
    D-link
    Product
    Dns-343
    Vendor
    D-link
    Product
    Dns-345
    Vendor
    D-link
    Product
    Dns-726-4
    Vendor
    Dlink
    Product
    Dnr-202l
    Vendor
    Dlink
    Product
    Dnr-202l Firmware
    Vendor
    Dlink
    Product
    Dnr-326
    Vendor
    Dlink
    Product
    Dnr-326 Firmware
    Vendor
    Dlink
    Product
    Dns-1100-4
    Vendor
    Dlink
    Product
    Dns-1100-4 Firmware
    Vendor
    Dlink
    Product
    Dns-120
    Vendor
    Dlink
    Product
    Dns-1200-05
    Vendor
    Dlink
    Product
    Dns-1200-05 Firmware
    Vendor
    Dlink
    Product
    Dns-120 Firmware
    Vendor
    Dlink
    Product
    Dns-1550-04
    Vendor
    Dlink
    Product
    Dns-1550-04 Firmware
    Vendor
    Dlink
    Product
    Dns-315l
    Vendor
    Dlink
    Product
    Dns-315l Firmware
    Vendor
    Dlink
    Product
    Dns-320
    Vendor
    Dlink
    Product
    Dns-320 Firmware
    Vendor
    Dlink
    Product
    Dns-320l
    Vendor
    Dlink
    Product
    Dns-320l Firmware
    Vendor
    Dlink
    Product
    Dns-320lw
    Vendor
    Dlink
    Product
    Dns-320lw Firmware
    Vendor
    Dlink
    Product
    Dns-321
    Vendor
    Dlink
    Product
    Dns-321 Firmware
    Vendor
    Dlink
    Product
    Dns-322l
    Vendor
    Dlink
    Product
    Dns-322l Firmware
    Vendor
    Dlink
    Product
    Dns-323
    Vendor
    Dlink
    Product
    Dns-323 Firmware
    Vendor
    Dlink
    Product
    Dns-325
    Vendor
    Dlink
    Product
    Dns-325 Firmware
    Vendor
    Dlink
    Product
    Dns-326
    Vendor
    Dlink
    Product
    Dns-326 Firmware
    Vendor
    Dlink
    Product
    Dns-327l
    Vendor
    Dlink
    Product
    Dns-327l Firmware
    Vendor
    Dlink
    Product
    Dns-340l
    Vendor
    Dlink
    Product
    Dns-340l Firmware
    Vendor
    Dlink
    Product
    Dns-343
    Vendor
    Dlink
    Product
    Dns-343 Firmware
    Vendor
    Dlink
    Product
    Dns-345
    Vendor
    Dlink
    Product
    Dns-345 Firmware
    Vendor
    Dlink
    Product
    Dns-726-4
    Vendor
    Dlink
    Product
    Dns-726-4 Firmware

    Exploits

    https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_164/164.md

    Related CVEs

    CVE-2026-16448 (CVSS 2.1) — A vulnerability was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-32…
    CVE-2026-5312 (CVSS 5.5) — A weakness has been identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, D…
    CVE-2026-5311 (CVSS 5.5) — A security flaw has been discovered in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-3…
    CVE-2026-5215 (CVSS 2.1) — A vulnerability was identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, D…
    CVE-2026-5214 (CVSS 7.4) — A vulnerability was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-32…
    CVE-2026-5213 (CVSS 7.4) — A vulnerability was determined in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, D…
    CVE-2026-5212 (CVSS 7.4) — A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, D…
    CVE-2026-5211 (CVSS 7.4) — A flaw has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, …
    CVE-2026-4213 (CVSS 7.4) — A vulnerability was detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR…
    CVE-2026-4212 (CVSS 7.4) — A security vulnerability has been detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High