CVE-2026-5605

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The exploit has been made available to the public and could be used for attacks."}, {"lang": "es", "value": "Se ha identificado una debilidad en Tenda CH22 1.0.0.1. Esto afecta a la funci\u00f3n formWrlExtraSet del archivo /goform/WrlExtraSet. La ejecuci\u00f3n de una manipulaci\u00f3n del argumento GO puede llevar a un desbordamiento de b\u00fafer basado en pila. El ataque puede ejecutarse de forma remota. El exploit se ha hecho p\u00fablico y podr\u00eda utilizarse para ataques."}], "id": "CVE-2026-5605", "lastModified": "2026-07-24T09:10:00.153", "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-2026-5605", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-06T15:16:03.374210Z", "version": "2.0.3"}}]}, "published": "2026-04-06T00:16:19.213", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/Litengzheng/vuldb_new/blob/main/CH22/vul_54/README.md"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory"], "url": "https://vuldb.com/submit/785052"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory"], "url": "https://vuldb.com/vuln/355397"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required"], "url": "https://vuldb.com/vuln/355397/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": "1.0.0.1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "CH22", "source": "cna", "vendor": "Tenda"}, "product": "ch22", "vendor": "tenda"}], "analysis": {"en": {"generated_at": "2026-04-06T01:20:30.569860+00:00", "value": {"mitigation_remediation": ["Check Tenda\u2019s official website or support portal for a firmware update that addresses the formWrlExtraSet vulnerability and apply it immediately.", "If no update is available, consider upgrading the device to a newer model that excludes the affected functionality.", "As a temporary workaround, restrict external access to the /goform/WrlExtraSet endpoint using firewall rules or set the device to operate only in a trusted local network.", "Monitor network traffic and device logs for abnormal attempts to access /goform/WrlExtraSet or signs of a buffer overflow exploitation."], "summary": {"action": "Immediate Patch", "impact": "Remote stack-based buffer overflow enabling potential code execution"}, "threat_synthesis": {"affected_systems": "The Tenda CH22 router running firmware version 1.0.0.1 is affected. No other Tenda products or firmware releases have been reported as vulnerable in the available data.", "description_and_impact": "A stack-based buffer overflow occurs in the formWrlExtraSet control of the Tenda CH22 device firmware 1.0.0.1 when an attacker manipulates the GO argument in the /goform/WrlExtraSet interface. The overflow can corrupt the execution stack and, if exploited successfully, can lead to arbitrary code execution on the device. The vulnerability falls under CWE\u2011119 and CWE\u2011121 and threatens confidentiality, integrity, and availability of the device and any networks it serves.", "risk_and_exploitability": "The CVSS score of 8.7 indicates high severity. No EPSS score is available, but the existence of a publicly available exploit and the ability to reach the vulnerable endpoint from external networks mean the likelihood of real-world exploitation is significant. The vulnerability is not currently listed in CISA\u2019s KEV catalog, but it should still be treated as a serious threat."}}}}, "created": "2026-04-06T20:22:11.766924+00:00", "updated": "2026-04-06T21:48:02.383025+00:00", "vendors": ["tenda", "tenda$PRODUCT$ch22"]}