{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2025-50659", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-04-22T15:37:14.941Z", "dateReserved": "2025-06-16T00:00:00.000Z", "datePublished": "2026-04-08T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-04-22T15:37:14.941Z"}, "descriptions": [{"lang": "en", "value": "A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the custom_error parameter in the /user.asp endpoint."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://www.dlink.com/en/security-bulletin/"}, {"url": "https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md"}, {"url": "https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10505"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-121", "lang": "en", "description": "CWE-121 Stack-based Buffer Overflow"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-04-10T17:42:34.295701Z", "id": "CVE-2025-50659", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2026-04-10T17:42:58.903Z"}}]}, "dataVersion": "5.2"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2025-50659", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-10T17:42:34.295701Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-10T17:42:54.274Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "references": [{"url": "https://www.dlink.com/en/security-bulletin/"}, {"url": "https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md"}, {"url": "https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10505"}], "descriptions": [{"lang": "en", "value": "A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the custom_error parameter in the /user.asp endpoint."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "n/a"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-04-22T15:37:14.941Z"}}}, "cveMetadata": {"cveId": "CVE-2025-50659", "state": "PUBLISHED", "dateUpdated": "2026-04-22T15:37:14.941Z", "dateReserved": "2025-06-16T00:00:00.000Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2026-04-08T00:00:00.000Z", "assignerShortName": "mitre"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:dlink:di-8003_firmware:16.07.26a1:*:*:*:*:*:*:*", "matchCriteriaId": "FA25536C-1B96-4611-BF35-A0AD24747929", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:dlink:di-8003:-:*:*:*:*:*:*:*", "matchCriteriaId": "E6644787-50D7-4190-A2E3-DD54F43AE38C", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the custom_error parameter in the /user.asp endpoint."}], "id": "CVE-2025-50659", "lastModified": "2026-04-22T16:16:50.730", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-04-08T19:24:16.470", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/xiaotea/iot-vulnerability-collection/blob/main/README.md"}, {"source": "cve@mitre.org", "url": "https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10505"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://www.dlink.com/en/security-bulletin/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "16.07.26A1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "di-8003", "vendor": "d-link"}], "analysis": {"en": {"generated_at": "2026-04-13T15:24:16.010004+00:00", "value": {"mitigation_remediation": ["Upgrade the device firmware to a version newer than 16.07.26A1 that contains the fix.", "If an update is not immediately available, disable remote access to the /user.asp endpoint or block inbound traffic to the device\u2019s web interface using a firewall.", "Monitor the device\u2019s logs for attempts to access /user.asp with anomalous parameter values."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution via Buffer Overflow"}, "threat_synthesis": {"affected_systems": "The affected product is the D-Link DI-8003 wireless router running firmware 16.07.26A1. The vulnerability is documented for this specific firmware version and is identifiable via the provided CPE entries for the device and its firmware.", "description_and_impact": "The vulnerability is a stack-based buffer overflow caused by improper handling of the custom_error parameter in the /user.asp endpoint. An attacker could send a crafted HTTP request that overflows the stack, potentially allowing execution of arbitrary code on the device. This flaw threatens confidentiality, integrity, and availability of the device and any systems it serves.", "risk_and_exploitability": "The CVSS score is 7.5, indicating high severity, while the EPSS score is below 1%, suggesting a low probability of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog. The likely attack vector is remote, via the web interface, and requires only an unauthenticated HTTP request to /user.asp."}}}}, "created": "2026-04-08T20:02:17.875375+00:00", "title": "Buffer Overflow in D-Link DI-8003 /user.asp Custom Error Parameter", "updated": "2026-04-14T16:40:29.299033+00:00", "vendors": ["d-link", "d-link$PRODUCT$di-8003"]}