{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5211", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-03-31T10:29:27.201Z", "datePublished": "2026-03-31T19:30:17.872Z", "dateUpdated": "2026-04-01T12:32:31.520Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-03-31T19:30:17.872Z"}, "title": "D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Del 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 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 vulnerability affects the function UPnP_AV_Server_Path_Del of the file /cgi-bin/app_mgr.cgi. Executing a manipulation of the argument f_dir can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used."}], "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": "2026-03-31T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-03-31T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-03-31T12:34:47.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "Ziyue Xie (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/354347", "name": "VDB-354347 | D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Del stack-based overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/354347/cti", "name": "VDB-354347 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/780434", "name": "Submit #780434 | 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_165/165.md", "tags": ["exploit"]}, {"url": "https://www.dlink.com/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-01T12:28:53.734289Z", "id": "CVE-2026-5211", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-01T12:32:31.520Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "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 vulnerability affects the function UPnP_AV_Server_Path_Del of the file /cgi-bin/app_mgr.cgi. Executing a manipulation of the argument f_dir can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used."}], "id": "CVE-2026-5211", "lastModified": "2026-03-31T20:16:29.873", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 9.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-03-31T20:16:29.873", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_165/165.md"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/780434"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/354347"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/354347/cti"}, {"source": "cna@vuldb.com", "url": "https://www.dlink.com/"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-121"}], "source": "cna@vuldb.com", "type": "Primary"}]}

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