CVE-2026-5983

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5983", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-04-09T12:18:30.613Z", "datePublished": "2026-04-09T21:45:14.227Z", "dateUpdated": "2026-04-14T16:33:56.691Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-04-09T21:45:14.227Z"}, "title": "D-Link DIR-605L POST Request formSetDDNS buffer overflow", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-120", "lang": "en", "description": "Buffer Overflow"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "affected": [{"vendor": "D-Link", "product": "DIR-605L", "versions": [{"version": "2.13B01", "status": "affected"}], "modules": ["POST Request Handler"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in D-Link DIR-605L 2.13B01. This issue affects the function formSetDDNS of the file /goform/formSetDDNS of the component POST Request Handler. Executing a manipulation of the argument curTime can lead to buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer."}], "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": "2026-04-09T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-04-09T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-04-09T14:24:04.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "wxhwxhwxh_mie (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/356537", "name": "VDB-356537 | D-Link DIR-605L POST Request formSetDDNS buffer overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/356537/cti", "name": "VDB-356537 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/791856", "name": "Submit #791856 | D-Link DIR-605L D-Link DIR-605L 2.13B01 BETA Buffer Overflow", "tags": ["third-party-advisory"]}, {"url": "https://lavender-bicycle-a5a.notion.site/D-Link-DIR-605L-formSetDDNS-33153a41781f802f9997f48dc9cf6304?source=copy_link", "tags": ["exploit"]}, {"url": "https://www.dlink.com/", "tags": ["product"]}], "tags": ["unsupported-when-assigned"]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-14T15:16:26.815183Z", "id": "CVE-2026-5983", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-14T16:33:56.691Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-5983", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-14T15:16:26.815183Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-14T15:16:31.181Z"}}], "cna": {"tags": ["unsupported-when-assigned"], "title": "D-Link DIR-605L POST Request formSetDDNS buffer overflow", "credits": [{"lang": "en", "type": "reporter", "value": "wxhwxhwxh_mie (VulDB User)"}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.7, "baseSeverity": "HIGH", "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"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "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"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 8.8, "baseSeverity": "HIGH", "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"}}, {"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"}}], "affected": [{"vendor": "D-Link", "modules": ["POST Request Handler"], "product": "DIR-605L", "versions": [{"status": "affected", "version": "2.13B01"}]}], "timeline": [{"lang": "en", "time": "2026-04-09T00:00:00.000Z", "value": "Advisory disclosed"}, {"lang": "en", "time": "2026-04-09T02:00:00.000Z", "value": "VulDB entry created"}, {"lang": "en", "time": "2026-04-09T14:24:04.000Z", "value": "VulDB entry last update"}], "references": [{"url": "https://vuldb.com/vuln/356537", "name": "VDB-356537 | D-Link DIR-605L POST Request formSetDDNS buffer overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/356537/cti", "name": "VDB-356537 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/791856", "name": "Submit #791856 | D-Link DIR-605L D-Link DIR-605L 2.13B01 BETA Buffer Overflow", "tags": ["third-party-advisory"]}, {"url": "https://lavender-bicycle-a5a.notion.site/D-Link-DIR-605L-formSetDDNS-33153a41781f802f9997f48dc9cf6304?source=copy_link", "tags": ["exploit"]}, {"url": "https://www.dlink.com/", "tags": ["product"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in D-Link DIR-605L 2.13B01. This issue affects the function formSetDDNS of the file /goform/formSetDDNS of the component POST Request Handler. Executing a manipulation of the argument curTime can lead to buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-120", "description": "Buffer Overflow"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-119", "description": "Memory Corruption"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-04-09T21:45:14.227Z"}}}, "cveMetadata": {"cveId": "CVE-2026-5983", "state": "PUBLISHED", "dateUpdated": "2026-04-14T16:33:56.691Z", "dateReserved": "2026-04-09T12:18:30.613Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2026-04-09T21:45:14.227Z", "assignerShortName": "VulDB"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"modules": ["POST Request Handler"], "product": "DIR-605L", "vendor": "D-Link", "versions": [{"status": "affected", "version": "2.13B01"}]}], "source": "cna@vuldb.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dir-605l_firmware:2.13b01:*:*:*:*:*:*:*", "matchCriteriaId": "47A17995-9117-42E4-938E-D18F605DD0FE", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dir-605l:-:*:*:*:*:*:*:*", "matchCriteriaId": "CD4E3AA2-EC1C-4219-8E13-B52D30A7FA06", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [{"sourceIdentifier": "cna@vuldb.com", "tags": ["unsupported-when-assigned"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was determined in D-Link DIR-605L 2.13B01. This issue affects the function formSetDDNS of the file /goform/formSetDDNS of the component POST Request Handler. Executing a manipulation of the argument curTime can lead to buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer."}, {"lang": "es", "value": "Se determin\u00f3 una vulnerabilidad en D-Link DIR-605L 2.13B01. Este problema afecta la funci\u00f3n formSetDDNS del archivo /goform/formSetDDNS del componente Gestor de Solicitudes POST. La ejecuci\u00f3n de una manipulaci\u00f3n del argumento curTime puede conducir a un desbordamiento de b\u00fafer. El ataque puede ser ejecutado remotamente. El exploit ha sido divulgado p\u00fablicamente y puede ser utilizado. Esta vulnerabilidad solo afecta a productos que ya no son compatibles por el mantenedor."}], "id": "CVE-2026-5983", "lastModified": "2026-10-26T21:10:00.170", "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": "Secondary"}], "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5983", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-14T15:16:26.815183Z", "version": "2.0.3"}}]}, "published": "2026-04-09T22:16:37.663", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://lavender-bicycle-a5a.notion.site/D-Link-DIR-605L-formSetDDNS-33153a41781f802f9997f48dc9cf6304?source=copy_link"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/submit/791856"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/vuln/356537"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/vuln/356537/cti"}, {"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://www.dlink.com/"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-120"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2.13B01"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "DIR-605L", "source": "cna", "vendor": "D-Link"}, "product": "dir-605l", "vendor": "d-link"}], "analysis": {"en": {"generated_at": "2026-04-09T23:51:10.722266+00:00", "value": {"mitigation_remediation": ["Replace the unsupported DIR\u2011605L router with a supported model that receives security updates", "If replacement is not immediately possible, restrict external access to the router\u2019s web interface using firewall rules or access control lists", "Segment the network to isolate the router from critical infrastructure and prevent lateral movement", "Continuously monitor router logs for suspicious POST requests to /goform/formSetDDNS and investigate any anomalies", "Apply any future firmware updates from D\u2011Link as soon as they become available"], "summary": {"action": "Replace Device", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The only impacted product is the D\u2011Link DIR\u2011605L model running firmware version 2.13B01. This firmware revision is no longer supported by the vendor, so no official patches or security updates are available for it.", "description_and_impact": "The vulnerability exists in the formSetDDNS endpoint of the D\u2011Link DIR\u2011605L router. A crafted POST request that supplies an oversized curTime value triggers a buffer overflow in the internal memory handling logic. This overflow falls under classic buffer overflow weaknesses, identified as CWE\u2011119 and CWE\u2011120. If successfully exploited, an attacker could inject arbitrary code and gain complete control over the device, potentially allowing further compromise of the network.", "risk_and_exploitability": "The CVSS score of 8.7 indicates a high severity level, but the EPSS score is not provided and the issue is not listed in the CISA KEV catalog. The exploit can be initiated remotely \u2013 any system that can reach the router\u2019s management interface can send a malicious POST request to /goform/formSetDDNS. Because the device is unsupported, the risk remains high until the hardware is replaced or a future update is applied."}}}}, "created": "2026-04-10T08:36:44.287665+00:00", "updated": "2026-04-10T09:27:41.300123+00:00", "vendors": ["d-link", "d-link$PRODUCT$dir-605l"]}