{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-7247", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-04-27T17:43:38.854Z", "datePublished": "2026-04-28T08:30:18.587Z", "dateUpdated": "2026-04-28T12:19:48.669Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-04-28T08:30:18.587Z"}, "title": "D-Link DI-8100 File Extension file_exten.asp file_exten_asp 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": "DI-8100", "versions": [{"version": "16.07.26A1", "status": "affected"}], "modules": ["File Extension Handler"]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in D-Link DI-8100 16.07.26A1. Affected by this issue is the function file_exten_asp of the file file_exten.asp of the component File Extension Handler. The manipulation of the argument Name leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.6, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P", "baseSeverity": "HIGH"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 7.2, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "HIGH"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 7.2, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "HIGH"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 8.3, "vectorString": "AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-04-27T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-04-27T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-04-27T19:49:19.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "draw (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/359856", "name": "VDB-359856 | D-Link DI-8100 File Extension file_exten.asp file_exten_asp buffer overflow", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/359856/cti", "name": "VDB-359856 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/802868", "name": "Submit #802868 | D-Link DI-8100 16.07.26A1 Denial of Service", "tags": ["third-party-advisory"]}, {"url": "https://github.com/draw-ctf/report/blob/main/DI-8100/file_exten_asp_overflow.md", "tags": ["exploit"]}, {"url": "https://www.dlink.com/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-28T12:18:20.034048Z", "id": "CVE-2026-7247", "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": "2026-04-28T12:19:48.669Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "16.07.26A1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "DI-8100", "source": "cna", "vendor": "D-Link"}, "product": "di-8100", "vendor": "d-link"}], "analysis": {"en": {"generated_at": "2026-04-28T12:18:09.403750+00:00", "value": {"mitigation_remediation": ["Apply the latest firmware update for the DI\u20118100 that addresses the buffer overflow issue.", "If an update is not yet available, block or remove remote administrative access that exposes the file_exten.asp interface, for example by disabling remote web management or limiting access to the local network.", "Configure the router behind a firewall or restrict inbound traffic to its HTTP/HTTPS ports to only trusted IP addresses or VPN endpoints."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The affected device is the D\u2011Link DI\u20118100 router running firmware 16.07.26A1. No other version ranges are documented, so only this build is known to be vulnerable.", "description_and_impact": "An overflow occurs in the file_exten_asp function located in file_exten.asp, a File Extension Handler on the D\u2011Link DI\u20118100. When a malicious Name parameter is processed, the input exceeds the allocated buffer, leading to a buffer overflow. This flaw can be exploited from a remote host and can result in the execution of arbitrary code, giving the attacker full control of the router. The vulnerability is listed as a memory corruption (CWE\u2011119/120) issue.", "risk_and_exploitability": "The CVSS score of 8.6 indicates high severity, while the lack of an EPSS score and KEV listing suggests limited public exploitation data. However, the description confirms that a publicly disclosed exploit exists and that remote exploitation is possible. The attack vector is inferred to be remote over the network, likely through the router\u2019s web interface."}}}}, "created": "2026-04-28T10:30:28.847192+00:00", "updated": "2026-04-28T12:30:31.056789+00:00", "vendors": ["d-link", "d-link$PRODUCT$di-8100"]}