{"id":"CVE-2026-4214","aliases":["EUVD-2026-12329","GHSA-qg8f-975j-pm28"],"status":"published","title":"D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow","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.","severity":{"version":"4.0","score":8.7,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00951,"percentile":0.61733,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-121","CWE-787"],"published":"2026-03-16T04:32:10Z","modified":"2026-06-17T10:56:13Z","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_firmware"},{"vendor":"dlink","product":"dnr-326_firmware"},{"vendor":"dlink","product":"dns-1100-4_firmware"},{"vendor":"dlink","product":"dns-1200-05_firmware"},{"vendor":"dlink","product":"dns-120_firmware"},{"vendor":"dlink","product":"dns-1550-04_firmware"},{"vendor":"dlink","product":"dns-315l_firmware"},{"vendor":"dlink","product":"dns-320_firmware"},{"vendor":"dlink","product":"dns-320l_firmware"},{"vendor":"dlink","product":"dns-320lw_firmware"},{"vendor":"dlink","product":"dns-321_firmware"},{"vendor":"dlink","product":"dns-322l_firmware"},{"vendor":"dlink","product":"dns-323_firmware"},{"vendor":"dlink","product":"dns-325_firmware"},{"vendor":"dlink","product":"dns-326_firmware"},{"vendor":"dlink","product":"dns-327l_firmware"},{"vendor":"dlink","product":"dns-340l_firmware"},{"vendor":"dlink","product":"dns-343_firmware"},{"vendor":"dlink","product":"dns-345_firmware"},{"vendor":"dlink","product":"dns-726-4_firmware"}],"references":[{"url":"https://vuldb.com/?id.351125","tags":["vdb-entry","technical-description","Third Party Advisory","VDB Entry"]},{"url":"https://vuldb.com/?ctiid.351125","tags":["signature","permissions-required","Permissions Required","VDB Entry"]},{"url":"https://vuldb.com/?submit.770445","tags":["third-party-advisory","Third Party Advisory","VDB Entry"]},{"url":"https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_164/164.md","tags":["exploit","Exploit","Third Party Advisory"]},{"url":"https://www.dlink.com/","tags":["product","Product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4214"},{"url":"https://www.dlink.com"},{"url":"https://github.com/advisories/GHSA-qg8f-975j-pm28"}],"sources":{"cve":[{"id":"CVE-2026-4214","title":"D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow","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.","status":"published","published":"2026-03-16T04:32:10.373Z","modified":"2026-03-16T14:40:37.489Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high","assessor":"cna"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","level":"high","assessor":"cna"},{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","level":"high","assessor":"cna"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-121","CWE-119"],"updated_at":"2026-11-02T14:19:59.369956Z"}],"euvd":[{"id":"EUVD-2026-12329","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.","status":"published","published":"2026-03-16T04:32:10Z","modified":"2026-03-16T14:40:37Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high"}],"updated_at":"2026-11-02T19:25:34.563327Z"}],"ghsa":[{"id":"GHSA-qg8f-975j-pm28","title":"A flaw has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS...","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.","status":"published","published":"2026-03-16T15:30:46Z","modified":"2026-03-19T15:32:18Z","cvss":[{"version":"4.0","score":7.4,"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119","CWE-787"],"updated_at":"2026-11-02T15:06:42.889562Z"}],"nvd":[{"id":"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.","status":"published","published":"2026-03-16T14:20:08.227Z","modified":"2026-06-17T10:56:13.963Z","cvss":[{"version":"4.0","score":7.4,"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"secondary"}],"cwes":["CWE-119","CWE-121","CWE-787"],"updated_at":"2026-11-02T14:12:09.735529Z"}]}}