CVE-2026-5991

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The exploit has been made public and could be used."}, {"lang": "es", "value": "Una vulnerabilidad fue encontrada en Tenda F451 1.0.0.7. Afectada por este problema es la funci\u00f3n formWrlExtraSet del archivo /goform/WrlExtraSet. La manipulaci\u00f3n del argumento GO resulta en desbordamiento de b\u00fafer basado en pila. El ataque puede ser lanzado remotamente. El exploit ha sido hecho p\u00fablico y podr\u00eda ser usado."}], "id": "CVE-2026-5991", "lastModified": "2026-10-26T22:10:00.163", "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-2026-5991", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-14T03:15:10.775979Z", "version": "2.0.3"}}]}, "published": "2026-04-10T00:16:36.557", "references": [{"source": "cna@vuldb.com", "tags": ["Broken Link"], "url": "https://github.com/Jimi-Lab/cve/issues/9"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/submit/792862"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/vuln/356545"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/vuln/356545/cti"}, {"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"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.7"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "F451", "source": "cna", "vendor": "Tenda"}, "product": "f451", "vendor": "tenda"}], "analysis": {"en": {"generated_at": "2026-04-10T02:52:49.663088+00:00", "value": {"mitigation_remediation": ["Apply the latest firmware update available for the Tenda F451 router.", "If a firmware update is not yet released, restrict external traffic to the /goform/WrlExtraSet interface using firewall rules.", "Configure the router\u2019s management interface to be accessible only from the internal network, blocking all remote access.", "Monitor network traffic for attempts to exploit the /goform/WrlExtraSet endpoint and apply any future patches as soon as they are distributed."], "summary": {"action": "Patch Immediately", "impact": "Stack-based buffer overflow that can lead to remote code execution"}, "threat_synthesis": {"affected_systems": "The flaw has been identified in Tenda F451 firmware version 1.0.0.7; no other firmware releases are currently reported to contain this issue in the CVE record. Devices running that firmware are affected.", "description_and_impact": "A stack-based buffer overflow occurs in the formWrlExtraSet function that processes requests to the /goform/WrlExtraSet endpoint on Tenda F451 routers. By manipulating the GO argument, an attacker can overflow a stack buffer, potentially corrupting control data and executing arbitrary code. The weakness is identified as uncontrolled buffer overrun (CWE\u2011119) and stack-based overflow (CWE\u2011121).", "risk_and_exploitability": "The CVSS score of 8.7 indicates high severity, and the description states that the attack can be launched remotely with publicly available exploit code. EPSS data is not available, and the vulnerability is not listed in the KEV catalog, but these omissions do not reduce the risk\u2014the vulnerability remains high and likely to be targeted on exposed routers."}}}}, "created": "2026-04-10T08:36:23.698737+00:00", "updated": "2026-04-10T09:27:23.604955+00:00", "vendors": ["tenda", "tenda$PRODUCT$f451"]}