CVE-2026-4960

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Executing a manipulation of the argument WANT/WANS can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized."}, {"lang": "es", "value": "Se determin\u00f3 una vulnerabilidad en Tenda AC6 15.03.05.16. Afectada est\u00e1 la funci\u00f3n fromWizardHandle del archivo /goform/WizardHandle del componente Gestor de Solicitudes POST. La ejecuci\u00f3n de una manipulaci\u00f3n del argumento WANT/WANS puede llevar a un desbordamiento de b\u00fafer basado en pila. El ataque puede ejecutarse remotamente. El exploit ha sido divulgado p\u00fablicamente y puede ser utilizado."}], "id": "CVE-2026-4960", "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-2026-4960", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-27T18:50:22.296223Z", "version": "2.0.3"}}]}, "published": "2026-03-27T17:16:30.750", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://lavender-bicycle-a5a.notion.site/Tenda-AC6-WizardHandle-32053a41781f800eb05feb16885747f7?source=copy_link"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.353837"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.353837"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.777616"}, {"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://www.tenda.com.cn/"}], "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": "15.03.05.16"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "AC6", "source": "cna", "vendor": "Tenda"}, "product": "ac6", "vendor": "tenda"}], "analysis": {"en": {"generated_at": "2026-04-01T06:45:10.125004+00:00", "value": {"mitigation_remediation": ["Upgrade the router firmware to a version that includes the fix for the fromWizardHandle buffer overflow.", "Verify that the device is running the updated firmware version before proceeding.", "If a firmware upgrade is delayed, block external access to the router\u2019s management interface to prevent remote manipulation of the WizardHandle endpoint.", "Monitor router logs for unusual POST requests to /goform/WizardHandle and apply network segmentation or firewall rules to limit exposure."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerable product is the Tenda AC6 router, specifically the firmware version 15.03.05.16. Only this version is confirmed; no other firmware releases are known to contain the flaw from the provided data.", "description_and_impact": "The flaw is in the fromWizardHandle function of the /goform/WizardHandle component in the Tenda AC6 firmware. A crafted POST request that manipulates the WANT/WANS argument can trigger a stack\u2011based buffer overflow, potentially allowing arbitrary code execution on the router. The issue is a classic stack overflow vulnerability (CWE\u2011119, CWE\u2011121, CWE\u2011787) that is exploitable remotely through the web interface.", "risk_and_exploitability": "The CVSS score of 8.7 indicates high severity, while the EPSS score of less than 1\u202f% suggests a low likelihood of exploitation. The vulnerability is not listed in the CISA KEV catalog. Attackers can target the router from a remote network by sending a malicious POST to /goform/WizardHandle; no privileged access is required, making the exploit straightforward."}}}}, "created": "2026-03-27T20:28:14.094338+00:00", "updated": "2026-04-02T07:55:33.382088+00:00", "vendors": ["tenda", "tenda$PRODUCT$ac6"]}