CVE-2026-4183

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Such manipulation of the argument pskValue leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. This vulnerability only affects products that are no longer supported by the maintainer."}, {"lang": "es", "value": "Una vulnerabilidad de seguridad ha sido detectada en D-Link DIR-816 1.10CNB05. Afectada es una funci\u00f3n desconocida del archivo /goform/form2WlanBasicSetup.cgi del componente goahead. Tal manipulaci\u00f3n del argumento pskValue conduce a desbordamiento de b\u00fafer basado en pila. El ataque puede ser ejecutado remotamente. El exploit ha sido divulgado p\u00fablicamente y puede ser usado. Esta vulnerabilidad solo afecta productos que ya no son soportados por el mantenedor."}], "id": "CVE-2026-4183", "lastModified": "2026-06-17T10:56:08.007", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 10.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "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": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "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": 8.9, "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": "NONE", "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:N/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-2026-4183", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-16T14:34:35.301026Z", "version": "2.0.3"}}]}, "published": "2026-03-16T14:19:59.250", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_87/87.md"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.351087"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.351087"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.769831"}, {"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-121"}], "source": "cna@vuldb.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.10CNB05"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "DIR-816", "source": "cna", "vendor": "D-Link"}, "product": "dir-816", "vendor": "d-link"}], "analysis": {"en": {"generated_at": "2026-03-19T21:25:46.919109+00:00", "value": {"mitigation_remediation": ["Update the DIR\u2011816 firmware to the latest supported version or apply the vendor\u2019s patch if available.", "If no update is possible, disable remote management or restrict access to the router only from trusted IP addresses.", "Block or limit access to the /goform/form2WlanBasicSetup.cgi endpoint using firewall rules.", "Monitor router logs for unusual authentication or configuration attempts."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "Affected systems are D\u2011Link DIR\u2011816 routers running firmware version 1.10CNB05. The flaw only exists in the legacy firmware that is no longer supported by the vendor. Systems identified by the CPE strings cpe:2.3:h:dlink:dir-816:-:*:*:*:*:*:*:* and cpe:2.3:o:dlink:dir-816_firmware:1.10cnb05:*:*:*:*:*:*:* are impacted.", "description_and_impact": "This vulnerability is a stack-based buffer overflow triggered by the pskValue argument in the /goform/form2WlanBasicSetup.cgi file. A maliciously crafted request can cause the overflow, leading to arbitrary code execution on the router. The impact provides an attacker with full compromise of the device, enabling data exfiltration, command injection, and disruption of network services\u2014affecting confidentiality, integrity, and availability at a critical level.", "risk_and_exploitability": "The vulnerability scores 9.3 on the CVSS scale, indicating critical severity. EPSS shows a probability of exploitation of less than 1%, and the issue is not listed in the CISA KEV catalog. Despite the low odds, the flaw is publicly disclosed and can be exploited remotely via a crafted HTTP request to the vulnerable CGI, making it a non\u2011negligible risk for exposed devices. The likely attack vector is remote network access to the router\u2019s web interface."}}}}, "created": "2026-03-16T09:21:29.587604+00:00", "updated": "2026-03-23T14:01:37.773232+00:00", "vendors": ["d-link", "d-link$PRODUCT$dir-816"]}