{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-4211", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-03-15T11:59:27.035Z", "datePublished": "2026-03-16T03:32:10.022Z", "dateUpdated": "2026-03-16T03:32:10.022Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-03-16T03:32:10.022Z"}, "title": "D-Link DNS-1550-04 local_backup_mgr.cgi Local_Backup_Info stack-based overflow", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-121", "lang": "en", "description": "Stack-based Buffer Overflow"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "D-Link", "product": "DNS-120", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNR-202L", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-315L", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-320", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-320L", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-320LW", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-321", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNR-322L", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-323", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-325", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-326", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-327L", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNR-326", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-340L", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-343", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-345", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-726-4", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-1100-4", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-1200-05", "versions": [{"version": "20260205", "status": "affected"}]}, {"vendor": "D-Link", "product": "DNS-1550-04", "versions": [{"version": "20260205", "status": "affected"}]}], "descriptions": [{"lang": "en", "value": "A weakness has been identified 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. Affected by this issue is the function Local_Backup_Info of the file /cgi-bin/local_backup_mgr.cgi. This manipulation of the argument f_idx causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.7, "vectorString": "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", "baseSeverity": "HIGH"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "vectorString": "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", "baseSeverity": "HIGH"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 8.8, "vectorString": "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", "baseSeverity": "HIGH"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 9, "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-03-15T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-03-15T01:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-03-15T13:04:30.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "pjqwudi (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/?id.351122", "name": "VDB-351122 | D-Link DNS-1550-04 local_backup_mgr.cgi Local_Backup_Info stack-based overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/?ctiid.351122", "name": "VDB-351122 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/?submit.770441", "name": "Submit #770441 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Stack-based Buffer Overflow", "tags": ["third-party-advisory"]}, {"url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_160/160.md", "tags": ["exploit"]}, {"url": "https://www.dlink.com/", "tags": ["product"]}]}}}

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